7804636040 has 32 divisors (see below), whose sum is σ = 17589415680. Its totient is φ = 3116701632.

The previous prime is 7804636031. The next prime is 7804636093. The reversal of 7804636040 is 406364087.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7804635985 and 7804636003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136442 + ... + 185001.

It is an arithmetic number, because the mean of its divisors is an integer number (549669240).

Almost surely, 2^7804636040 is an apocalyptic number.

It is an amenable number.

7804636040 is an abundant number, since it is smaller than the sum of its proper divisors (9784779640).

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

7804636040 is a wasteful number, since it uses less digits than its factorization.

7804636040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322061 (or 322057 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 7804636040 is about 88343.8511725632. The cubic root of 7804636040 is about 1983.5853176688.

The spelling of 7804636040 in words is "seven billion, eight hundred four million, six hundred thirty-six thousand, forty".