213338888 has 16 divisors (see below), whose sum is σ = 457154880. Its totient is φ = 91430928.

The previous prime is 213338863. The next prime is 213338903. The reversal of 213338888 is 888833312.

It is a super-2 number, since 2×213338888² = 91026962266153088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 1904756 + ... + 1904867.

It is an arithmetic number, because the mean of its divisors is an integer number (28572180).

Almost surely, 2^213338888 is an apocalyptic number.

213338888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213338888 is an abundant number, since it is smaller than the sum of its proper divisors (243815992).

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

213338888 is a wasteful number, since it uses less digits than its factorization.

213338888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809636 (or 3809632 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 213338888 is about 14606.1250165812. The cubic root of 213338888 is about 597.5258188104.

The spelling of 213338888 in words is "two hundred thirteen million, three hundred thirty-eight thousand, eight hundred eighty-eight".