70378812 has 72 divisors (see below), whose sum is σ = 214032000. Its totient is φ = 19048608.

The previous prime is 70378807. The next prime is 70378813. The reversal of 70378812 is 21887307.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70378813) 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 23 ways as a sum of consecutive naturals, for example, 2562 + ... + 12137.

Almost surely, 2^70378812 is an apocalyptic number.

It is an amenable number.

70378812 is an abundant number, since it is smaller than the sum of its proper divisors (143653188).

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

70378812 is a wasteful number, since it uses less digits than its factorization.

70378812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14735 (or 14730 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 70378812 is about 8389.2080675115. The cubic root of 70378812 is about 412.8706178763.

The spelling of 70378812 in words is "seventy million, three hundred seventy-eight thousand, eight hundred twelve".