44645642 has 8 divisors (see below), whose sum is σ = 69128832. Its totient is φ = 21602700.

The previous prime is 44645603. The next prime is 44645647. The reversal of 44645642 is 24654644.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (44645647) 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, 359984 + ... + 360107.

It is an arithmetic number, because the mean of its divisors is an integer number (8641104).

Almost surely, 2^44645642 is an apocalyptic number.

44645642 is a deficient number, since it is larger than the sum of its proper divisors (24483190).

44645642 is a wasteful number, since it uses less digits than its factorization.

44645642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720124.

The product of its digits is 92160, while the sum is 35.

The square root of 44645642 is about 6681.7394441867. The cubic root of 44645642 is about 354.7532292826.

The spelling of 44645642 in words is "forty-four million, six hundred forty-five thousand, six hundred forty-two".