44894639 has 8 divisors (see below), whose sum is σ = 46540560. Its totient is φ = 43255296.

The previous prime is 44894611. The next prime is 44894651. The reversal of 44894639 is 93649844.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 44894639 - 2⁸ = 44894383 is a prime.

It is a super-2 number, since 2×44894639² = 4031057221880642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44894593 and 44894602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44894609) 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, 15392 + ... + 18074.

It is an arithmetic number, because the mean of its divisors is an integer number (5817570).

Almost surely, 2^44894639 is an apocalyptic number.

44894639 is a deficient number, since it is larger than the sum of its proper divisors (1645921).

44894639 is a wasteful number, since it uses less digits than its factorization.

44894639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289.

The product of its digits is 746496, while the sum is 47.

The square root of 44894639 is about 6700.3461850863. The cubic root of 44894639 is about 355.4115151179.

The spelling of 44894639 in words is "forty-four million, eight hundred ninety-four thousand, six hundred thirty-nine".