70464420 has 72 divisors (see below), whose sum is σ = 230191416. Its totient is φ = 17344512.

The previous prime is 70464413. The next prime is 70464451. The reversal of 70464420 is 2446407.

It can be written as a sum of positive squares in 4 ways, for example, as 9998244 + 60466176 = 3162^2 + 7776^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12717 + ... + 17396.

It is an arithmetic number, because the mean of its divisors is an integer number (3197103).

Almost surely, 2^70464420 is an apocalyptic number.

It is an amenable number.

70464420 is an abundant number, since it is smaller than the sum of its proper divisors (159726996).

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

70464420 is a wasteful number, since it uses less digits than its factorization.

70464420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30141 (or 30136 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 70464420 is about 8394.3087863147. The cubic root of 70464420 is about 413.0379537805.

The spelling of 70464420 in words is "seventy million, four hundred sixty-four thousand, four hundred twenty".