7860904038 has 80 divisors (see below), whose sum is σ = 18988832016. Its totient is φ = 2416236480.

The previous prime is 7860904013. The next prime is 7860904039. The reversal of 7860904038 is 8304090687.

It is a happy number.

7860904038 is a `hidden beast` number, since 7 + 8 + 609 + 0 + 4 + 0 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7860903984 and 7860904002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7860904039) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4065720 + ... + 4067652.

Almost surely, 2^7860904038 is an apocalyptic number.

7860904038 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7860904038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9494416008).

7860904038 is an abundant number, since it is smaller than the sum of its proper divisors (11127927978).

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

7860904038 is a wasteful number, since it uses less digits than its factorization.

7860904038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891 (or 3882 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 7860904038 is about 88661.7394257523. The cubic root of 7860904038 is about 1988.3408338306.

The spelling of 7860904038 in words is "seven billion, eight hundred sixty million, nine hundred four thousand, thirty-eight".