785039040 has 280 divisors, whose sum is σ = 2885553792. Its totient is φ = 202383360.

The previous prime is 785039029. The next prime is 785039041. The reversal of 785039040 is 40930587.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 785038986 and 785039004.

It is not an unprimeable number, because it can be changed into a prime (785039041) 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, 803032 + ... + 804008.

Almost surely, 2^785039040 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 785039040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442776896).

785039040 is an abundant number, since it is smaller than the sum of its proper divisors (2100514752).

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

785039040 is a wasteful number, since it uses less digits than its factorization.

785039040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 785039040 is about 28018.5481422575. The cubic root of 785039040 is about 922.4944278862.

The spelling of 785039040 in words is "seven hundred eighty-five million, thirty-nine thousand, forty".