43457982 has 16 divisors (see below), whose sum is σ = 87330432. Its totient is φ = 14416920.

The previous prime is 43457969. The next prime is 43458007. The reversal of 43457982 is 28975434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15898 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (5458152).

Almost surely, 2^43457982 is an apocalyptic number.

43457982 is an abundant number, since it is smaller than the sum of its proper divisors (43872450).

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

43457982 is a wasteful number, since it uses less digits than its factorization.

43457982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34543.

The product of its digits is 241920, while the sum is 42.

The square root of 43457982 is about 6592.2668331918. The cubic root of 43457982 is about 351.5792094261.

The spelling of 43457982 in words is "forty-three million, four hundred fifty-seven thousand, nine hundred eighty-two".