213459994 has 32 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 93326640.

The previous prime is 213459989. The next prime is 213460019. The reversal of 213459994 is 499954312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59257 + ... + 62755.

It is an arithmetic number, because the mean of its divisors is an integer number (11340000).

Almost surely, 2^213459994 is an apocalyptic number.

213459994 is a deficient number, since it is larger than the sum of its proper divisors (149420006).

213459994 is a wasteful number, since it uses less digits than its factorization.

213459994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618.

The product of its digits is 349920, while the sum is 46.

The square root of 213459994 is about 14610.2701549287. The cubic root of 213459994 is about 597.6388631689.

It can be divided in two parts, 2134 and 59994, that added together give a triangular number (62128 = T₃₅₂).

The spelling of 213459994 in words is "two hundred thirteen million, four hundred fifty-nine thousand, nine hundred ninety-four".