428625970 has 16 divisors (see below), whose sum is σ = 771764760. Its totient is φ = 171397504.

The previous prime is 428625961. The next prime is 428625983. The reversal of 428625970 is 79526824.

It can be written as a sum of positive squares in 4 ways, for example, as 223592209 + 205033761 = 14953^2 + 14319^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53166 + ... + 60694.

Almost surely, 2^428625970 is an apocalyptic number.

428625970 is a deficient number, since it is larger than the sum of its proper divisors (343138790).

428625970 is a wasteful number, since it uses less digits than its factorization.

428625970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13229.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 428625970 is about 20703.2840390118. The cubic root of 428625970 is about 753.9794230607.

The spelling of 428625970 in words is "four hundred twenty-eight million, six hundred twenty-five thousand, nine hundred seventy".