216053454 has 24 divisors (see below), whose sum is σ = 441523368. Its totient is φ = 70481200.

The previous prime is 216053449. The next prime is 216053473. The reversal of 216053454 is 454350612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5104 + ... + 21404.

It is an arithmetic number, because the mean of its divisors is an integer number (18396807).

Almost surely, 2^216053454 is an apocalyptic number.

216053454 is an abundant number, since it is smaller than the sum of its proper divisors (225469914).

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

216053454 is a wasteful number, since it uses less digits than its factorization.

216053454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16400 (or 16353 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 216053454 is about 14698.7568862132. The cubic root of 216053454 is about 600.0494903622.

The spelling of 216053454 in words is "two hundred sixteen million, fifty-three thousand, four hundred fifty-four".