1023409438 has 8 divisors (see below), whose sum is σ = 1535295960. Its totient is φ = 511644120.

The previous prime is 1023409433. The next prime is 1023409451. The reversal of 1023409438 is 8349043201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023409433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4948 + ... + 45511.

It is an arithmetic number, because the mean of its divisors is an integer number (191911995).

Almost surely, 2^1023409438 is an apocalyptic number.

1023409438 is a deficient number, since it is larger than the sum of its proper divisors (511886522).

1023409438 is a wasteful number, since it uses less digits than its factorization.

1023409438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60602.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1023409438 is about 31990.7711379391. The cubic root of 1023409438 is about 1007.7430366400.

The spelling of 1023409438 in words is "one billion, twenty-three million, four hundred nine thousand, four hundred thirty-eight".