43890474 has 16 divisors (see below), whose sum is σ = 88017120. Its totient is φ = 14590800.

The previous prime is 43890461. The next prime is 43890479. The reversal of 43890474 is 47409834.

It is not an unprimeable number, because it can be changed into a prime (43890479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7377 + ... + 11924.

It is an arithmetic number, because the mean of its divisors is an integer number (5501070).

Almost surely, 2^43890474 is an apocalyptic number.

43890474 is an abundant number, since it is smaller than the sum of its proper divisors (44126646).

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

43890474 is a wasteful number, since it uses less digits than its factorization.

43890474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 43890474 is about 6624.9886037638. The cubic root of 43890474 is about 352.7416621625.

The spelling of 43890474 in words is "forty-three million, eight hundred ninety thousand, four hundred seventy-four".