7830476040 has 128 divisors (see below), whose sum is σ = 24690355200. Its totient is φ = 1982872320.

The previous prime is 7830476021. The next prime is 7830476041. The reversal of 7830476040 is 406740387.

It is a happy number.

It is a super-2 number, since 2×7830476040² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7830476040.

It is not an unprimeable number, because it can be changed into a prime (7830476041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373435 + ... + 393845.

It is an arithmetic number, because the mean of its divisors is an integer number (192893400).

Almost surely, 2^7830476040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7830476040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12345177600).

7830476040 is an abundant number, since it is smaller than the sum of its proper divisors (16859879160).

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

7830476040 is a wasteful number, since it uses less digits than its factorization.

7830476040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20587 (or 20583 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 7830476040 is about 88489.9770595518. The cubic root of 7830476040 is about 1985.7720257277.

The spelling of 7830476040 in words is "seven billion, eight hundred thirty million, four hundred seventy-six thousand, forty".