70513224 has 32 divisors (see below), whose sum is σ = 178770240. Its totient is φ = 23172800.

The previous prime is 70513213. The next prime is 70513271. The reversal of 70513224 is 42231507.

It is a super-2 number, since 2×70513224² = 9944229517748352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 70513194 and 70513203.

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, 18987 + ... + 22394.

It is an arithmetic number, because the mean of its divisors is an integer number (5586570).

Almost surely, 2^70513224 is an apocalyptic number.

It is an amenable number.

70513224 is an abundant number, since it is smaller than the sum of its proper divisors (108257016).

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

70513224 is a wasteful number, since it uses less digits than its factorization.

70513224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41461 (or 41457 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 70513224 is about 8397.2152526894. The cubic root of 70513224 is about 413.1332891392.

The spelling of 70513224 in words is "seventy million, five hundred thirteen thousand, two hundred twenty-four".