44164421 has 16 divisors (see below), whose sum is σ = 53114880. Its totient is φ = 35925120.

The previous prime is 44164411. The next prime is 44164441. The reversal of 44164421 is 12446144.

It is not a de Polignac number, because 44164421 - 2¹⁰ = 44163397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44164411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8540 + ... + 12698.

It is an arithmetic number, because the mean of its divisors is an integer number (3319680).

Almost surely, 2^44164421 is an apocalyptic number.

44164421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44164421 is a deficient number, since it is larger than the sum of its proper divisors (8950459).

44164421 is a wasteful number, since it uses less digits than its factorization.

44164421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244.

The product of its digits is 3072, while the sum is 26.

The square root of 44164421 is about 6645.6317231697. The cubic root of 44164421 is about 353.4740319173.

The spelling of 44164421 in words is "forty-four million, one hundred sixty-four thousand, four hundred twenty-one".