40140982 has 8 divisors (see below), whose sum is σ = 68813136. Its totient is φ = 17203272.

The previous prime is 40140979. The next prime is 40140983. The reversal of 40140982 is 28904104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40140982² = 3222596871848648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40140982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433593 + ... + 1433620.

It is an arithmetic number, because the mean of its divisors is an integer number (8601642).

Almost surely, 2^40140982 is an apocalyptic number.

40140982 is a deficient number, since it is larger than the sum of its proper divisors (28672154).

40140982 is a wasteful number, since it uses less digits than its factorization.

40140982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867222.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40140982 is about 6335.6911225217. The cubic root of 40140982 is about 342.3965112591.

The spelling of 40140982 in words is "forty million, one hundred forty thousand, nine hundred eighty-two".