44912820 has 48 divisors (see below), whose sum is σ = 129161088. Its totient is φ = 11652480.

The previous prime is 44912801. The next prime is 44912821. The reversal of 44912820 is 2821944.

It is a super-3 number, since 3×44912820³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44912821) 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, 7896 + ... + 12335.

It is an arithmetic number, because the mean of its divisors is an integer number (2690856).

Almost surely, 2^44912820 is an apocalyptic number.

It is an amenable number.

44912820 is an abundant number, since it is smaller than the sum of its proper divisors (84248268).

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

44912820 is a wasteful number, since it uses less digits than its factorization.

44912820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20280 (or 20278 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 44912820 is about 6701.7027686999. The cubic root of 44912820 is about 355.4594856910.

The spelling of 44912820 in words is "forty-four million, nine hundred twelve thousand, eight hundred twenty".