44129940 has 48 divisors (see below), whose sum is σ = 126584640. Its totient is φ = 11480320.

The previous prime is 44129923. The next prime is 44129941. The reversal of 44129940 is 4992144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44129941) 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, 6510 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (2637180).

Almost surely, 2^44129940 is an apocalyptic number.

It is an amenable number.

44129940 is an abundant number, since it is smaller than the sum of its proper divisors (82454700).

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

44129940 is a wasteful number, since it uses less digits than its factorization.

44129940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17992 (or 17990 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 44129940 is about 6643.0369560917. The cubic root of 44129940 is about 353.3820173415.

It can be divided in two parts, 441 and 29940, that added together give a triangular number (30381 = T₂₄₆).

The spelling of 44129940 in words is "forty-four million, one hundred twenty-nine thousand, nine hundred forty".