43621492 has 12 divisors (see below), whose sum is σ = 80355520. Its totient is φ = 20662776.

The previous prime is 43621463. The next prime is 43621493. The reversal of 43621492 is 29412634.

It is a happy number.

43621492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43621493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286908 + ... + 287059.

Almost surely, 2^43621492 is an apocalyptic number.

It is an amenable number.

43621492 is a deficient number, since it is larger than the sum of its proper divisors (36734028).

43621492 is a wasteful number, since it uses less digits than its factorization.

43621492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573990 (or 573988 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 43621492 is about 6604.6568419563. The cubic root of 43621492 is about 352.0195947253.

The spelling of 43621492 in words is "forty-three million, six hundred twenty-one thousand, four hundred ninety-two".