70428590 has 16 divisors (see below), whose sum is σ = 130861440. Its totient is φ = 27262560.

The previous prime is 70428557. The next prime is 70428643. The reversal of 70428590 is 9582407.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70428590.

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, 113285 + ... + 113904.

It is an arithmetic number, because the mean of its divisors is an integer number (8178840).

Almost surely, 2^70428590 is an apocalyptic number.

70428590 is a deficient number, since it is larger than the sum of its proper divisors (60432850).

70428590 is a wasteful number, since it uses less digits than its factorization.

70428590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227227.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 70428590 is about 8392.1743308871. The cubic root of 70428590 is about 412.9679342399.

The spelling of 70428590 in words is "seventy million, four hundred twenty-eight thousand, five hundred ninety".