61894272 has 64 divisors (see below), whose sum is σ = 179364960. Its totient is φ = 18754560.

The previous prime is 61894247. The next prime is 61894307. The reversal of 61894272 is 27249816.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 61894272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103 + ... + 11550.

Almost surely, 2^61894272 is an apocalyptic number.

It is an amenable number.

61894272 is an abundant number, since it is smaller than the sum of its proper divisors (117470688).

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

61894272 is a wasteful number, since it uses less digits than its factorization.

61894272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14681 (or 14669 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 61894272 is about 7867.2912746383. The cubic root of 61894272 is about 395.5640544869.

The spelling of 61894272 in words is "sixty-one million, eight hundred ninety-four thousand, two hundred seventy-two".