70220736 has 56 divisors (see below), whose sum is σ = 206441040. Its totient is φ = 23406336.

The previous prime is 70220729. The next prime is 70220747. The reversal of 70220736 is 63702207.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 18591 + ... + 22046.

Almost surely, 2^70220736 is an apocalyptic number.

It is an amenable number.

70220736 is an abundant number, since it is smaller than the sum of its proper divisors (136220304).

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

70220736 is a wasteful number, since it uses less digits than its factorization.

70220736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40658 (or 40642 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 70220736 is about 8379.7813813965. The cubic root of 70220736 is about 412.5612735425.

The spelling of 70220736 in words is "seventy million, two hundred twenty thousand, seven hundred thirty-six".