44021404 has 36 divisors (see below), whose sum is σ = 94339560. Its totient is φ = 17871840.

The previous prime is 44021401. The next prime is 44021431. The reversal of 44021404 is 40412044.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44021401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2187 + ... + 9634.

Almost surely, 2^44021404 is an apocalyptic number.

It is an amenable number.

44021404 is an abundant number, since it is smaller than the sum of its proper divisors (50318156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44021404 is a wasteful number, since it uses less digits than its factorization.

44021404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858 (or 11849 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 44021404 is about 6634.8627717535. The cubic root of 44021404 is about 353.0920693859.

Adding to 44021404 its reverse (40412044), we get a palindrome (84433448).

The spelling of 44021404 in words is "forty-four million, twenty-one thousand, four hundred four".