216342452 has 12 divisors (see below), whose sum is σ = 380503200. Its totient is φ = 107627256.

The previous prime is 216342431. The next prime is 216342461. The reversal of 216342452 is 254243612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135098 + ... + 136689.

It is an arithmetic number, because the mean of its divisors is an integer number (31708600).

Almost surely, 2^216342452 is an apocalyptic number.

It is an amenable number.

216342452 is a deficient number, since it is larger than the sum of its proper divisors (164160748).

216342452 is a wasteful number, since it uses less digits than its factorization.

216342452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271990 (or 271988 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 216342452 is about 14708.5842962537. The cubic root of 216342452 is about 600.3169177609.

The spelling of 216342452 in words is "two hundred sixteen million, three hundred forty-two thousand, four hundred fifty-two".