61814444 has 12 divisors (see below), whose sum is σ = 108231144. Its totient is φ = 30891264.

The previous prime is 61814443. The next prime is 61814461. The reversal of 61814444 is 44441816.

It is a self number, because there is not a number n which added to its sum of digits gives 61814444.

It is not an unprimeable number, because it can be changed into a prime (61814443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10892 + ... + 15564.

It is an arithmetic number, because the mean of its divisors is an integer number (9019262).

Almost surely, 2^61814444 is an apocalyptic number.

It is an amenable number.

61814444 is a deficient number, since it is larger than the sum of its proper divisors (46416700).

61814444 is a wasteful number, since it uses less digits than its factorization.

61814444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984 (or 7982 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 61814444 is about 7862.2162269935. The cubic root of 61814444 is about 395.3939220360.

The spelling of 61814444 in words is "sixty-one million, eight hundred fourteen thousand, four hundred forty-four".