40142432 has 24 divisors (see below), whose sum is σ = 86215752. Its totient is φ = 18246400.

The previous prime is 40142419. The next prime is 40142449. The reversal of 40142432 is 23424104.

It is a super-2 number, since 2×40142432² = 3222829693749248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56669 + ... + 57372.

It is an arithmetic number, because the mean of its divisors is an integer number (3592323).

Almost surely, 2^40142432 is an apocalyptic number.

It is an amenable number.

40142432 is an abundant number, since it is smaller than the sum of its proper divisors (46073320).

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

40142432 is a wasteful number, since it uses less digits than its factorization.

40142432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114062 (or 114054 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40142432 is about 6335.8055525718. The cubic root of 40142432 is about 342.4006339698.

Adding to 40142432 its reverse (23424104), we get a palindrome (63566536).

It can be divided in two parts, 4014 and 2432, that added together give a palindrome (6446).

The spelling of 40142432 in words is "forty million, one hundred forty-two thousand, four hundred thirty-two".