61940680 has 16 divisors (see below), whose sum is σ = 139366620. Its totient is φ = 24776256.

The previous prime is 61940677. The next prime is 61940731. The reversal of 61940680 is 8604916.

It can be written as a sum of positive squares in 2 ways, for example, as 53611684 + 8328996 = 7322^2 + 2886^2 .

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, 774219 + ... + 774298.

Almost surely, 2^61940680 is an apocalyptic number.

It is an amenable number.

61940680 is an abundant number, since it is smaller than the sum of its proper divisors (77425940).

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

61940680 is a wasteful number, since it uses less digits than its factorization.

61940680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548528 (or 1548524 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 61940680 is about 7870.2401488138. The cubic root of 61940680 is about 395.6628937380.

The spelling of 61940680 in words is "sixty-one million, nine hundred forty thousand, six hundred eighty".