417628628 has 6 divisors (see below), whose sum is σ = 730850106. Its totient is φ = 208814312.

The previous prime is 417628591. The next prime is 417628639. The reversal of 417628628 is 826826714.

It can be written as a sum of positive squares in only one way, i.e., 274299844 + 143328784 = 16562^2 + 11972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52203575 + ... + 52203582.

It is an arithmetic number, because the mean of its divisors is an integer number (121808351).

Almost surely, 2^417628628 is an apocalyptic number.

It is an amenable number.

417628628 is a deficient number, since it is larger than the sum of its proper divisors (313221478).

417628628 is a wasteful number, since it uses less digits than its factorization.

417628628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104407161 (or 104407159 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 417628628 is about 20435.9640829592. The cubic root of 417628628 is about 747.4751410621.

The spelling of 417628628 in words is "four hundred seventeen million, six hundred twenty-eight thousand, six hundred twenty-eight".