61479456 has 24 divisors (see below), whose sum is σ = 161383824. Its totient is φ = 20493120.

The previous prime is 61479443. The next prime is 61479461. The reversal of 61479456 is 65497416.

It is a tau number, because it is divible by the number of its divisors (24).

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, 320110 + ... + 320301.

It is an arithmetic number, because the mean of its divisors is an integer number (6724326).

Almost surely, 2^61479456 is an apocalyptic number.

It is an amenable number.

61479456 is an abundant number, since it is smaller than the sum of its proper divisors (99904368).

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

61479456 is a wasteful number, since it uses less digits than its factorization.

61479456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640424 (or 640416 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 61479456 is about 7840.8836236741. The cubic root of 61479456 is about 394.6783815815.

The spelling of 61479456 in words is "sixty-one million, four hundred seventy-nine thousand, four hundred fifty-six".