1025697438 has 32 divisors (see below), whose sum is σ = 2286789120. Its totient is φ = 340779960.

The previous prime is 1025697437. The next prime is 1025697469. The reversal of 1025697438 is 8347965201.

1025697438 is a `hidden beast` number, since 10 + 2 + 569 + 74 + 3 + 8 = 666.

1025697438 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

1025697438 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1025697393 and 1025697402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025697437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14358 + ... + 47513.

It is an arithmetic number, because the mean of its divisors is an integer number (71462160).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025697438 = 2051394876, but 3⋅1025697438 = 3077092314 is not.

Almost surely, 2^1025697438 is an apocalyptic number.

1025697438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1025697438 is an abundant number, since it is smaller than the sum of its proper divisors (1261091682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025697438 is a wasteful number, since it uses less digits than its factorization.

1025697438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62189 (or 62183 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1025697438 is about 32026.5114865794. The cubic root of 1025697438 is about 1008.4934694072.

The spelling of 1025697438 in words is "one billion, twenty-five million, six hundred ninety-seven thousand, four hundred thirty-eight".