40234131 has 32 divisors (see below), whose sum is σ = 68536320. Its totient is φ = 22851072.

The previous prime is 40234127. The next prime is 40234151. The reversal of 40234131 is 13143204.

It is not a de Polignac number, because 40234131 - 2² = 40234127 is a prime.

It is a super-2 number, since 2×40234131² = 3237570594650322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40234151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35926 + ... + 37028.

It is an arithmetic number, because the mean of its divisors is an integer number (2141760).

Almost surely, 2^40234131 is an apocalyptic number.

40234131 is a deficient number, since it is larger than the sum of its proper divisors (28302189).

40234131 is a wasteful number, since it uses less digits than its factorization.

40234131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40234131 is about 6343.0379945260. The cubic root of 40234131 is about 342.6611556232.

Adding to 40234131 its reverse (13143204), we get a palindrome (53377335).

The spelling of 40234131 in words is "forty million, two hundred thirty-four thousand, one hundred thirty-one".