44738421 has 48 divisors (see below), whose sum is σ = 76684608. Its totient is φ = 22982400.

The previous prime is 44738383. The next prime is 44738443. The reversal of 44738421 is 12483744.

It is not a de Polignac number, because 44738421 - 2⁶ = 44738357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44738471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78066 + ... + 78636.

It is an arithmetic number, because the mean of its divisors is an integer number (1597596).

Almost surely, 2^44738421 is an apocalyptic number.

44738421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44738421 is a deficient number, since it is larger than the sum of its proper divisors (31946187).

44738421 is a wasteful number, since it uses less digits than its factorization.

44738421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 635 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 44738421 is about 6688.6785690449. The cubic root of 44738421 is about 354.9987991760.

The spelling of 44738421 in words is "forty-four million, seven hundred thirty-eight thousand, four hundred twenty-one".