213244590 has 32 divisors (see below), whose sum is σ = 551156256. Its totient is φ = 52490880.

The previous prime is 213244589. The next prime is 213244601. The reversal of 213244590 is 95442312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273001 + ... + 273780.

It is an arithmetic number, because the mean of its divisors is an integer number (17223633).

Almost surely, 2^213244590 is an apocalyptic number.

213244590 is an abundant number, since it is smaller than the sum of its proper divisors (337911666).

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

213244590 is a wasteful number, since it uses less digits than its factorization.

213244590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546804.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 213244590 is about 14602.8966304634. The cubic root of 213244590 is about 597.4377683008.

The spelling of 213244590 in words is "two hundred thirteen million, two hundred forty-four thousand, five hundred ninety".