61274944 has 28 divisors (see below), whose sum is σ = 126882144. Its totient is φ = 29304704.

The previous prime is 61274903. The next prime is 61274963. The reversal of 61274944 is 44947216.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

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, 19342 + ... + 22285.

Almost surely, 2^61274944 is an apocalyptic number.

61274944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61274944 is an abundant number, since it is smaller than the sum of its proper divisors (65607200).

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

61274944 is a wasteful number, since it uses less digits than its factorization.

61274944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41662 (or 41652 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 61274944 is about 7827.8313727366. The cubic root of 61274944 is about 394.2402616112.

The spelling of 61274944 in words is "sixty-one million, two hundred seventy-four thousand, nine hundred forty-four".