61345760 has 48 divisors (see below), whose sum is σ = 165636576. Its totient is φ = 21032448.

The previous prime is 61345733. The next prime is 61345777. The reversal of 61345760 is 6754316.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26267 + ... + 28506.

It is an arithmetic number, because the mean of its divisors is an integer number (3450762).

Almost surely, 2^61345760 is an apocalyptic number.

It is an amenable number.

61345760 is an abundant number, since it is smaller than the sum of its proper divisors (104290816).

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

61345760 is a wasteful number, since it uses less digits than its factorization.

61345760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54795 (or 54787 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 61345760 is about 7832.3534138853. The cubic root of 61345760 is about 394.3920788044.

The spelling of 61345760 in words is "sixty-one million, three hundred forty-five thousand, seven hundred sixty".