70428156 has 48 divisors (see below), whose sum is σ = 171752448. Its totient is φ = 22435200.

The previous prime is 70428151. The next prime is 70428157. The reversal of 70428156 is 65182407.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70428151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29736 + ... + 32016.

It is an arithmetic number, because the mean of its divisors is an integer number (3578176).

Almost surely, 2^70428156 is an apocalyptic number.

It is an amenable number.

70428156 is an abundant number, since it is smaller than the sum of its proper divisors (101324292).

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

70428156 is a wasteful number, since it uses less digits than its factorization.

70428156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 70428156 is about 8392.1484734244. The cubic root of 70428156 is about 412.9670859648.

The spelling of 70428156 in words is "seventy million, four hundred twenty-eight thousand, one hundred fifty-six".