70645542 has 32 divisors (see below), whose sum is σ = 157901184. Its totient is φ = 20884800.

The previous prime is 70645529. The next prime is 70645609. The reversal of 70645542 is 24554607.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10348 + ... + 15759.

It is an arithmetic number, because the mean of its divisors is an integer number (4934412).

Almost surely, 2^70645542 is an apocalyptic number.

70645542 is an abundant number, since it is smaller than the sum of its proper divisors (87255642).

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

70645542 is a wasteful number, since it uses less digits than its factorization.

70645542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26164.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 70645542 is about 8405.0902434180. The cubic root of 70645542 is about 413.3915424149.

The spelling of 70645542 in words is "seventy million, six hundred forty-five thousand, five hundred forty-two".