1025402886 has 12 divisors (see below), whose sum is σ = 2221706292. Its totient is φ = 341800956.

The previous prime is 1025402881. The next prime is 1025402899. The reversal of 1025402886 is 6882045201.

1025402886 is a `hidden beast` number, since 10 + 2 + 540 + 28 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1025402886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025402881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28483396 + ... + 28483431.

It is an arithmetic number, because the mean of its divisors is an integer number (185142191).

Almost surely, 2^1025402886 is an apocalyptic number.

1025402886 is an abundant number, since it is smaller than the sum of its proper divisors (1196303406).

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

1025402886 is a wasteful number, since it uses less digits than its factorization.

1025402886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56966835 (or 56966832 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1025402886 is about 32021.9125912242. The cubic root of 1025402886 is about 1008.3969229998.

The spelling of 1025402886 in words is "one billion, twenty-five million, four hundred two thousand, eight hundred eighty-six".