43975044 has 72 divisors (see below), whose sum is σ = 117936000. Its totient is φ = 13777344.

The previous prime is 43975031. The next prime is 43975067. The reversal of 43975044 is 44057934.

43975044 = T₄₃₂ + T₄₃₃ + ... + T₇₀₀.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163342 + ... + 163610.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 2^43975044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43975044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58968000).

43975044 is an abundant number, since it is smaller than the sum of its proper divisors (73960956).

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

43975044 is a wasteful number, since it uses less digits than its factorization.

43975044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 43975044 is about 6631.3681846207. The cubic root of 43975044 is about 352.9680759302.

The spelling of 43975044 in words is "forty-three million, nine hundred seventy-five thousand, forty-four".