61489344 has 56 divisors (see below), whose sum is σ = 185936128. Its totient is φ = 17568000.

The previous prime is 61489333. The next prime is 61489349. The reversal of 61489344 is 44398416.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (61489349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21532 + ... + 24219.

It is an arithmetic number, because the mean of its divisors is an integer number (3320288).

Almost surely, 2^61489344 is an apocalyptic number.

61489344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61489344 is an abundant number, since it is smaller than the sum of its proper divisors (124446784).

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

61489344 is a wasteful number, since it uses less digits than its factorization.

61489344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45773 (or 45763 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 61489344 is about 7841.5141395014. The cubic root of 61489344 is about 394.6995397097.

The spelling of 61489344 in words is "sixty-one million, four hundred eighty-nine thousand, three hundred forty-four".