40035979 has 4 divisors (see below), whose sum is σ = 41416560. Its totient is φ = 38655400.

The previous prime is 40035971. The next prime is 40035991. The reversal of 40035979 is 97953004.

40035979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40035979 - 2³ = 40035971 is a prime.

It is a super-2 number, since 2×40035979² = 3205759228976882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40035971) 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 3 ways as a sum of consecutive naturals, for example, 690247 + ... + 690304.

It is an arithmetic number, because the mean of its divisors is an integer number (10354140).

Almost surely, 2^40035979 is an apocalyptic number.

40035979 is a deficient number, since it is larger than the sum of its proper divisors (1380581).

40035979 is a wasteful number, since it uses less digits than its factorization.

40035979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380580.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 40035979 is about 6327.3990707083. The cubic root of 40035979 is about 342.0976973147.

It can be divided in two parts, 40035 and 979, that added together give a palindrome (41014).

The spelling of 40035979 in words is "forty million, thirty-five thousand, nine hundred seventy-nine".