44072920 has 64 divisors (see below), whose sum is σ = 103229280. Its totient is φ = 16920576.

The previous prime is 44072881. The next prime is 44072933. The reversal of 44072920 is 2927044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143407 + ... + 143713.

Almost surely, 2^44072920 is an apocalyptic number.

44072920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44072920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51614640).

44072920 is an abundant number, since it is smaller than the sum of its proper divisors (59156360).

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

44072920 is a wasteful number, since it uses less digits than its factorization.

44072920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 44072920 is about 6638.7438570862. The cubic root of 44072920 is about 353.2297508956.

Adding to 44072920 its reverse (2927044), we get a palindrome (46999964).

The spelling of 44072920 in words is "forty-four million, seventy-two thousand, nine hundred twenty".