40140004 has 12 divisors (see below), whose sum is σ = 70717500. Its totient is φ = 19935008.

The previous prime is 40139993. The next prime is 40140011. The reversal of 40140004 is 40004104.

It is a happy number.

40140004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 38812900 = 1152^2 + 6230^2 .

It is a super-2 number, since 2×40140004² = 3222439842240032, which contains 22 as substring.

It is an unprimeable number.

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, 33079 + ... + 34270.

It is an arithmetic number, because the mean of its divisors is an integer number (5893125).

Almost surely, 2^40140004 is an apocalyptic number.

It is an amenable number.

40140004 is a deficient number, since it is larger than the sum of its proper divisors (30577496).

40140004 is a wasteful number, since it uses less digits than its factorization.

40140004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67502 (or 67500 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 40140004 is about 6335.6139402587. The cubic root of 40140004 is about 342.3937305058.

Adding to 40140004 its reverse (40004104), we get a palindrome (80144108).

The spelling of 40140004 in words is "forty million, one hundred forty thousand, four".