40214979 has 24 divisors (see below), whose sum is σ = 70293600. Its totient is φ = 21627648.

The previous prime is 40214957. The next prime is 40214981. The reversal of 40214979 is 97941204.

It is not a de Polignac number, because 40214979 - 2¹⁶ = 40149443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40214929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17704 + ... + 19845.

It is an arithmetic number, because the mean of its divisors is an integer number (2928900).

Almost surely, 2^40214979 is an apocalyptic number.

40214979 is a deficient number, since it is larger than the sum of its proper divisors (30078621).

40214979 is a wasteful number, since it uses less digits than its factorization.

40214979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37579 (or 37576 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40214979 is about 6341.5281281407. The cubic root of 40214979 is about 342.6067765188.

The spelling of 40214979 in words is "forty million, two hundred fourteen thousand, nine hundred seventy-nine".