40131070 has 64 divisors (see below), whose sum is σ = 87246720. Its totient is φ = 12999168.

The previous prime is 40131043. The next prime is 40131071. The reversal of 40131070 is 7013104.

It is a super-2 number, since 2×40131070² = 3221005558689800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131071) 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, 107404 + ... + 107776.

It is an arithmetic number, because the mean of its divisors is an integer number (1363230).

Almost surely, 2^40131070 is an apocalyptic number.

40131070 is an abundant number, since it is smaller than the sum of its proper divisors (47115650).

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

40131070 is a wasteful number, since it uses less digits than its factorization.

40131070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 40131070 is about 6334.9088391231. The cubic root of 40131070 is about 342.3683263183.

Adding to 40131070 its reverse (7013104), we get a palindrome (47144174).

The spelling of 40131070 in words is "forty million, one hundred thirty-one thousand, seventy".