707639040 has 432 divisors, whose sum is σ = 2668891680. Its totient is φ = 172523520.

The previous prime is 707639033. The next prime is 707639041. The reversal of 707639040 is 40936707.

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 = 707638986 and 707639004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707639041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11600610 + ... + 11600670.

It is an arithmetic number, because the mean of its divisors is an integer number (6177990).

Almost surely, 2^707639040 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 707639040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334445840).

707639040 is an abundant number, since it is smaller than the sum of its proper divisors (1961252640).

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

707639040 is a wasteful number, since it uses less digits than its factorization.

707639040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 707639040 is about 26601.4856727965. The cubic root of 707639040 is about 891.1221967712.

The spelling of 707639040 in words is "seven hundred seven million, six hundred thirty-nine thousand, forty".