40929986 has 8 divisors (see below), whose sum is σ = 61439040. Its totient is φ = 20450308.

The previous prime is 40929953. The next prime is 40929989. The reversal of 40929986 is 68992904.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40929986.

It is not an unprimeable number, because it can be changed into a prime (40929989) 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, 3446 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (7679880).

Almost surely, 2^40929986 is an apocalyptic number.

40929986 is a deficient number, since it is larger than the sum of its proper divisors (20509054).

40929986 is a wasteful number, since it uses less digits than its factorization.

40929986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14688.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 40929986 is about 6397.6547265385. The cubic root of 40929986 is about 344.6253329526.

The spelling of 40929986 in words is "forty million, nine hundred twenty-nine thousand, nine hundred eighty-six".