61940464 has 20 divisors (see below), whose sum is σ = 122275656. Its totient is φ = 30385472.

The previous prime is 61940453. The next prime is 61940477. The reversal of 61940464 is 46404916.

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, 35674 + ... + 37369.

Almost surely, 2^61940464 is an apocalyptic number.

It is an amenable number.

61940464 is a deficient number, since it is larger than the sum of its proper divisors (60335192).

61940464 is a wasteful number, since it uses less digits than its factorization.

61940464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73104 (or 73098 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 61940464 is about 7870.2264262218. The cubic root of 61940464 is about 395.6624338179.

The spelling of 61940464 in words is "sixty-one million, nine hundred forty thousand, four hundred sixty-four".