61792440 has 64 divisors (see below), whose sum is σ = 185945760. Its totient is φ = 16427520.

The previous prime is 61792403. The next prime is 61792463. The reversal of 61792440 is 4429716.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54762 + ... + 55878.

Almost surely, 2^61792440 is an apocalyptic number.

61792440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61792440 is an abundant number, since it is smaller than the sum of its proper divisors (124153320).

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

61792440 is a wasteful number, since it uses less digits than its factorization.

61792440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 61792440 is about 7860.8167514578. The cubic root of 61792440 is about 395.3470005301.

The spelling of 61792440 in words is "sixty-one million, seven hundred ninety-two thousand, four hundred forty".