1002478938 has 16 divisors (see below), whose sum is σ = 2005268160. Its totient is φ = 334107936.

The previous prime is 1002478937. The next prime is 1002478957. The reversal of 1002478938 is 8398742001.

It is a super-2 number, since 2×1002478938² = 2009928042267215688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1002478938.

It is not an unprimeable number, because it can be changed into a prime (1002478937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69603 + ... + 82761.

It is an arithmetic number, because the mean of its divisors is an integer number (125329260).

Almost surely, 2^1002478938 is an apocalyptic number.

1002478938 is an abundant number, since it is smaller than the sum of its proper divisors (1002789222).

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

1002478938 is a wasteful number, since it uses less digits than its factorization.

1002478938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25861.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1002478938 is about 31661.9477922632. The cubic root of 1002478938 is about 1000.8256308128.

The spelling of 1002478938 in words is "one billion, two million, four hundred seventy-eight thousand, nine hundred thirty-eight".