40133979 has 12 divisors (see below), whose sum is σ = 58234176. Its totient is φ = 26634672.

The previous prime is 40133969. The next prime is 40133981. The reversal of 40133979 is 97933104.

40133979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40133979 - 2⁴ = 40133963 is a prime.

It is a super-2 number, since 2×40133979² = 3221472540744882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40133959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7992 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (4852848).

Almost surely, 2^40133979 is an apocalyptic number.

40133979 is a deficient number, since it is larger than the sum of its proper divisors (18100197).

40133979 is a wasteful number, since it uses less digits than its factorization.

40133979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20226 (or 20223 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 40133979 is about 6335.1384357408. The cubic root of 40133979 is about 342.3765985905.

The spelling of 40133979 in words is "forty million, one hundred thirty-three thousand, nine hundred seventy-nine".