785984040 has 64 divisors (see below), whose sum is σ = 2619950400. Its totient is φ = 209595456.

The previous prime is 785984033. The next prime is 785984047. The reversal of 785984040 is 40489587.

It is an interprime number because it is at equal distance from previous prime (785984033) and next prime (785984047).

It is a super-2 number, since 2×785984040² = 1235541822269443200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (785984047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362802 + ... + 364961.

It is an arithmetic number, because the mean of its divisors is an integer number (40936725).

Almost surely, 2^785984040 is an apocalyptic number.

It is an amenable number.

785984040 is an abundant number, since it is smaller than the sum of its proper divisors (1833966360).

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

785984040 is a wasteful number, since it uses less digits than its factorization.

785984040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727783 (or 727773 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 785984040 is about 28035.4068991338. The cubic root of 785984040 is about 922.8644339741.

The spelling of 785984040 in words is "seven hundred eighty-five million, nine hundred eighty-four thousand, forty".