61413644 has 24 divisors (see below), whose sum is σ = 110412288. Its totient is φ = 29877120.

The previous prime is 61413637. The next prime is 61413661. The reversal of 61413644 is 44631416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25784 + ... + 28064.

It is an arithmetic number, because the mean of its divisors is an integer number (4600512).

Almost surely, 2^61413644 is an apocalyptic number.

It is an amenable number.

61413644 is a deficient number, since it is larger than the sum of its proper divisors (48998644).

61413644 is a wasteful number, since it uses less digits than its factorization.

61413644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2463 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 61413644 is about 7836.6857790778. The cubic root of 61413644 is about 394.5375006585.

The spelling of 61413644 in words is "sixty-one million, four hundred thirteen thousand, six hundred forty-four".