61273392 has 20 divisors (see below), whose sum is σ = 158289720. Its totient is φ = 20424448.

The previous prime is 61273351. The next prime is 61273411. The reversal of 61273392 is 29337216.

It is a happy 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, 638217 + ... + 638312.

It is an arithmetic number, because the mean of its divisors is an integer number (7914486).

Almost surely, 2^61273392 is an apocalyptic number.

It is an amenable number.

61273392 is an abundant number, since it is smaller than the sum of its proper divisors (97016328).

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

61273392 is a wasteful number, since it uses less digits than its factorization.

61273392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276540 (or 1276534 counting only the distinct ones).

The product of its digits is 13608, while the sum is 33.

The square root of 61273392 is about 7827.7322386500. The cubic root of 61273392 is about 394.2369330834.

The spelling of 61273392 in words is "sixty-one million, two hundred seventy-three thousand, three hundred ninety-two".