40167939 has 16 divisors (see below), whose sum is σ = 62512128. Its totient is φ = 22464192.

The previous prime is 40167937. The next prime is 40167943. The reversal of 40167939 is 93976104.

It is not a de Polignac number, because 40167939 - 2¹ = 40167937 is a prime.

It is a super-2 number, since 2×40167939² = 3226926647015442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40167897 and 40167906.

It is not an unprimeable number, because it can be changed into a prime (40167937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19362 + ... + 21335.

It is an arithmetic number, because the mean of its divisors is an integer number (3907008).

Almost surely, 2^40167939 is an apocalyptic number.

40167939 is a deficient number, since it is larger than the sum of its proper divisors (22344189).

40167939 is a wasteful number, since it uses less digits than its factorization.

40167939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40754.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 40167939 is about 6337.8181576943. The cubic root of 40167939 is about 342.4731404870.

The spelling of 40167939 in words is "forty million, one hundred sixty-seven thousand, nine hundred thirty-nine".