70939040 has 24 divisors (see below), whose sum is σ = 167593860. Its totient is φ = 28375552.

The previous prime is 70939039. The next prime is 70939051. The reversal of 70939040 is 4093907.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70492816 + 446224 = 8396^2 + 668^2 .

It is a super-2 number, since 2×70939040² = 10064694792243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 70938988 and 70939006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221525 + ... + 221844.

Almost surely, 2^70939040 is an apocalyptic number.

It is an amenable number.

70939040 is an abundant number, since it is smaller than the sum of its proper divisors (96654820).

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

70939040 is a wasteful number, since it uses less digits than its factorization.

70939040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443384 (or 443376 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 70939040 is about 8422.5316859006. The cubic root of 70939040 is about 413.9632319716.

The spelling of 70939040 in words is "seventy million, nine hundred thirty-nine thousand, forty".