212996304 has 90 divisors (see below), whose sum is σ = 619294130. Its totient is φ = 70963776.

The previous prime is 212996279. The next prime is 212996359. The reversal of 212996304 is 403699212.

212996304 is a `hidden beast` number, since 2 + 12 + 9 + 9 + 630 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 212576400 + 419904 = 14580^2 + 648^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 103962 + ... + 105990.

Almost surely, 2^212996304 is an apocalyptic number.

212996304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212996304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309647065).

212996304 is an abundant number, since it is smaller than the sum of its proper divisors (406297826).

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

212996304 is an frugal number, since it uses more digits than its factorization.

212996304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 212996304 is about 14594.3928959035. The cubic root of 212996304 is about 597.2058076819.

The spelling of 212996304 in words is "two hundred twelve million, nine hundred ninety-six thousand, three hundred four".