61394472 has 48 divisors (see below), whose sum is σ = 175032000. Its totient is φ = 19387296.

The previous prime is 61394471. The next prime is 61394483. The reversal of 61394472 is 27449316.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61394471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21072 + ... + 23807.

It is an arithmetic number, because the mean of its divisors is an integer number (3646500).

Almost surely, 2^61394472 is an apocalyptic number.

It is an amenable number.

61394472 is an abundant number, since it is smaller than the sum of its proper divisors (113637528).

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

61394472 is a wasteful number, since it uses less digits than its factorization.

61394472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44910 (or 44903 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 61394472 is about 7835.4624624205. The cubic root of 61394472 is about 394.4964410518.

The spelling of 61394472 in words is "sixty-one million, three hundred ninety-four thousand, four hundred seventy-two".