61940580 has 48 divisors (see below), whose sum is σ = 186777024. Its totient is φ = 15246720.

The previous prime is 61940579. The next prime is 61940581. The reversal of 61940580 is 8504916.

It is an interprime number because it is at equal distance from previous prime (61940579) and next prime (61940581).

It is not an unprimeable number, because it can be changed into a prime (61940581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38926 + ... + 40485.

It is an arithmetic number, because the mean of its divisors is an integer number (3891188).

Almost surely, 2^61940580 is an apocalyptic number.

61940580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61940580 is an abundant number, since it is smaller than the sum of its proper divisors (124836444).

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

61940580 is a wasteful number, since it uses less digits than its factorization.

61940580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79436 (or 79434 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 61940580 is about 7870.2337957649. The cubic root of 61940580 is about 395.6626808121.

The spelling of 61940580 in words is "sixty-one million, nine hundred forty thousand, five hundred eighty".