70746240 has 64 divisors (see below), whose sum is σ = 225509760. Its totient is φ = 18865152.

The previous prime is 70746227. The next prime is 70746289. The reversal of 70746240 is 4264707.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 70746198 and 70746207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16504 + ... + 20343.

It is an arithmetic number, because the mean of its divisors is an integer number (3523590).

Almost surely, 2^70746240 is an apocalyptic number.

It is an amenable number.

70746240 is an abundant number, since it is smaller than the sum of its proper divisors (154763520).

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

70746240 is a wasteful number, since it uses less digits than its factorization.

70746240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36869 (or 36857 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 70746240 is about 8411.0784088605. The cubic root of 70746240 is about 413.5878649633.

The spelling of 70746240 in words is "seventy million, seven hundred forty-six thousand, two hundred forty".