44917421 has 8 divisors (see below), whose sum is σ = 45421440. Its totient is φ = 44416512.

The previous prime is 44917409. The next prime is 44917493. The reversal of 44917421 is 12471944.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44917421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44917021) 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, 38381 + ... + 39533.

It is an arithmetic number, because the mean of its divisors is an integer number (5677680).

Almost surely, 2^44917421 is an apocalyptic number.

It is an amenable number.

44917421 is a deficient number, since it is larger than the sum of its proper divisors (504019).

44917421 is a wasteful number, since it uses less digits than its factorization.

44917421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its digits is 8064, while the sum is 32.

The square root of 44917421 is about 6702.0460308774. The cubic root of 44917421 is about 355.4716233780.

The spelling of 44917421 in words is "forty-four million, nine hundred seventeen thousand, four hundred twenty-one".