213098928 has 40 divisors (see below), whose sum is σ = 629150208. Its totient is φ = 60885312.

The previous prime is 213098911. The next prime is 213098939. The reversal of 213098928 is 829890312.

It is a super-2 number, since 2×213098928² = 90822306229498368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 213098928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316776 + ... + 317447.

Almost surely, 2^213098928 is an apocalyptic number.

213098928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213098928 is an abundant number, since it is smaller than the sum of its proper divisors (416051280).

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

213098928 is a wasteful number, since it uses less digits than its factorization.

213098928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634241 (or 634235 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 213098928 is about 14597.9083433210. The cubic root of 213098928 is about 597.3017057597.

The spelling of 213098928 in words is "two hundred thirteen million, ninety-eight thousand, nine hundred twenty-eight".