40704131 has 4 divisors (see below), whose sum is σ = 43835232. Its totient is φ = 37573032.

The previous prime is 40704127. The next prime is 40704149. The reversal of 40704131 is 13140704.

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 40704131 - 2² = 40704127 is a prime.

It is a super-2 number, since 2×40704131² = 3313652560930322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40704151) 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 3 ways as a sum of consecutive naturals, for example, 1565531 + ... + 1565556.

It is an arithmetic number, because the mean of its divisors is an integer number (10958808).

Almost surely, 2^40704131 is an apocalyptic number.

40704131 is a deficient number, since it is larger than the sum of its proper divisors (3131101).

40704131 is a wasteful number, since it uses less digits than its factorization.

40704131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131100.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 40704131 is about 6379.9789184605. The cubic root of 40704131 is about 343.9902731836.

Adding to 40704131 its reverse (13140704), we get a palindrome (53844835).

The spelling of 40704131 in words is "forty million, seven hundred four thousand, one hundred thirty-one".