70428372 has 48 divisors (see below), whose sum is σ = 191815680. Its totient is φ = 19693152.

The previous prime is 70428329. The next prime is 70428377. The reversal of 70428372 is 27382407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70428377) 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, 4972 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (3996160).

Almost surely, 2^70428372 is an apocalyptic number.

It is an amenable number.

70428372 is an abundant number, since it is smaller than the sum of its proper divisors (121387308).

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

70428372 is a wasteful number, since it uses less digits than its factorization.

70428372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17900 (or 17898 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 70428372 is about 8392.1613425863. The cubic root of 70428372 is about 412.9675081482.

The spelling of 70428372 in words is "seventy million, four hundred twenty-eight thousand, three hundred seventy-two".