44477421 has 4 divisors (see below), whose sum is σ = 59303232. Its totient is φ = 29651612.

The previous prime is 44477417. The next prime is 44477431. The reversal of 44477421 is 12477444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44477421 - 2² = 44477417 is a prime.

It is a super-2 number, since 2×44477421² = 3956481957622482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44477401) 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, 7412901 + ... + 7412906.

It is an arithmetic number, because the mean of its divisors is an integer number (14825808).

Almost surely, 2^44477421 is an apocalyptic number.

It is an amenable number.

44477421 is a deficient number, since it is larger than the sum of its proper divisors (14825811).

44477421 is a wasteful number, since it uses less digits than its factorization.

44477421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14825810.

The product of its digits is 25088, while the sum is 33.

The square root of 44477421 is about 6669.1394497341. The cubic root of 44477421 is about 354.3071084508.

The spelling of 44477421 in words is "forty-four million, four hundred seventy-seven thousand, four hundred twenty-one".