40709982 has 8 divisors (see below), whose sum is σ = 81419976. Its totient is φ = 13569992.

The previous prime is 40709971. The next prime is 40709987. The reversal of 40709982 is 28990704.

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

40709982 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40709982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40709987) 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, 3392493 + ... + 3392504.

It is an arithmetic number, because the mean of its divisors is an integer number (10177497).

Almost surely, 2^40709982 is an apocalyptic number.

40709982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40709982 is a wasteful number, since it uses less digits than its factorization.

40709982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785002.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 40709982 is about 6380.4374458183. The cubic root of 40709982 is about 344.0067546447.

The spelling of 40709982 in words is "forty million, seven hundred nine thousand, nine hundred eighty-two".