40131042 has 16 divisors (see below), whose sum is σ = 91728192. Its totient is φ = 11466000.

The previous prime is 40131029. The next prime is 40131043. The reversal of 40131042 is 24013104.

It is a super-2 number, since 2×40131042² = 3221001064011528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40131043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477709 + ... + 477792.

It is an arithmetic number, because the mean of its divisors is an integer number (5733012).

Almost surely, 2^40131042 is an apocalyptic number.

40131042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40131042 is an abundant number, since it is smaller than the sum of its proper divisors (51597150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40131042 is a wasteful number, since it uses less digits than its factorization.

40131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955513.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40131042 is about 6334.9066291462. The cubic root of 40131042 is about 342.3682466933.

Adding to 40131042 its reverse (24013104), we get a palindrome (64144146).

It can be divided in two parts, 4013104 and 2, that multiplied together give a palindrome (8026208).

The spelling of 40131042 in words is "forty million, one hundred thirty-one thousand, forty-two".