70635940 has 12 divisors (see below), whose sum is σ = 148335516. Its totient is φ = 28254368.

The previous prime is 70635931. The next prime is 70635953. The reversal of 70635940 is 4953607.

It can be written as a sum of positive squares in 2 ways, for example, as 55472704 + 15163236 = 7448^2 + 3894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70635896 and 70635905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1765879 + ... + 1765918.

It is an arithmetic number, because the mean of its divisors is an integer number (12361293).

Almost surely, 2^70635940 is an apocalyptic number.

It is an amenable number.

70635940 is an abundant number, since it is smaller than the sum of its proper divisors (77699576).

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

70635940 is a wasteful number, since it uses less digits than its factorization.

70635940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531806 (or 3531804 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 70635940 is about 8404.5190225259. The cubic root of 70635940 is about 413.3728124506.

The spelling of 70635940 in words is "seventy million, six hundred thirty-five thousand, nine hundred forty".