70156040 has 16 divisors (see below), whose sum is σ = 157851180. Its totient is φ = 28062400.

The previous prime is 70155989. The next prime is 70156061. The reversal of 70156040 is 4065107.

It can be written as a sum of positive squares in 2 ways, for example, as 59567524 + 10588516 = 7718^2 + 3254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70155997 and 70156015.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 876911 + ... + 876990.

Almost surely, 2^70156040 is an apocalyptic number.

It is an amenable number.

70156040 is an abundant number, since it is smaller than the sum of its proper divisors (87695140).

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

70156040 is a wasteful number, since it uses less digits than its factorization.

70156040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753912 (or 1753908 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 70156040 is about 8375.9202479489. The cubic root of 70156040 is about 412.4345338409.

The spelling of 70156040 in words is "seventy million, one hundred fifty-six thousand, forty".