61274442 has 16 divisors (see below), whose sum is σ = 125861472. Its totient is φ = 19872720.

The previous prime is 61274429. The next prime is 61274489. The reversal of 61274442 is 24447216.

It is a super-2 number, since 2×61274442² = 7509114484822728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137784 + ... + 138227.

It is an arithmetic number, because the mean of its divisors is an integer number (7866342).

Almost surely, 2^61274442 is an apocalyptic number.

61274442 is an abundant number, since it is smaller than the sum of its proper divisors (64587030).

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

61274442 is a wasteful number, since it uses less digits than its factorization.

61274442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276053.

The product of its digits is 10752, while the sum is 30.

The square root of 61274442 is about 7827.7993075960. The cubic root of 61274442 is about 394.2391849930.

It can be divided in two parts, 61274 and 442, that added together give a palindrome (61716).

The spelling of 61274442 in words is "sixty-one million, two hundred seventy-four thousand, four hundred forty-two".