213254240 has 48 divisors (see below), whose sum is σ = 505174320. Its totient is φ = 85071360.

The previous prime is 213254227. The next prime is 213254263. The reversal of 213254240 is 42452312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65450 + ... + 68630.

It is an arithmetic number, because the mean of its divisors is an integer number (10524465).

Almost surely, 2^213254240 is an apocalyptic number.

213254240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213254240 is an abundant number, since it is smaller than the sum of its proper divisors (291920080).

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

213254240 is a wasteful number, since it uses less digits than its factorization.

213254240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 213254240 is about 14603.2270406236. The cubic root of 213254240 is about 597.4467801550.

The spelling of 213254240 in words is "two hundred thirteen million, two hundred fifty-four thousand, two hundred forty".