61940408 has 16 divisors (see below), whose sum is σ = 116250000. Its totient is φ = 30940416.

The previous prime is 61940377. The next prime is 61940419. The reversal of 61940408 is 80404916.

It is a super-2 number, since 2×61940408² = 7673228286412928, which contains 22 as substring.

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, 6893 + ... + 13091.

It is an arithmetic number, because the mean of its divisors is an integer number (7265625).

Almost surely, 2^61940408 is an apocalyptic number.

It is an amenable number.

61940408 is a deficient number, since it is larger than the sum of its proper divisors (54309592).

61940408 is a wasteful number, since it uses less digits than its factorization.

61940408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454 (or 7450 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 61940408 is about 7870.2228685089. Note that the first 3 decimals coincide. The cubic root of 61940408 is about 395.6623145792.

The spelling of 61940408 in words is "sixty-one million, nine hundred forty thousand, four hundred eight".