40437982 has 16 divisors (see below), whose sum is σ = 65716560. Its totient is φ = 18661656.

The previous prime is 40437961. The next prime is 40437983. The reversal of 40437982 is 28973404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40437983) 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, 208 + ... + 8995.

It is an arithmetic number, because the mean of its divisors is an integer number (4107285).

Almost surely, 2^40437982 is an apocalyptic number.

40437982 is a deficient number, since it is larger than the sum of its proper divisors (25278578).

40437982 is an equidigital number, since it uses as much as digits as its factorization.

40437982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244 (or 9218 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 40437982 is about 6359.0865696262. The cubic root of 40437982 is about 343.2388921337.

The spelling of 40437982 in words is "forty million, four hundred thirty-seven thousand, nine hundred eighty-two".