40132242 has 12 divisors (see below), whose sum is σ = 86953230. Its totient is φ = 13377408.

The previous prime is 40132207. The next prime is 40132247. The reversal of 40132242 is 24223104.

It can be written as a sum of positive squares in only one way, i.e., 28291761 + 11840481 = 5319^2 + 3441^2 .

It is a super-2 number, since 2×40132242² = 3221193695893128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2229569 = 40132242 / (4 + 0 + 1 + 3 + 2 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (40132247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114767 + ... + 1114802.

Almost surely, 2^40132242 is an apocalyptic number.

40132242 is an abundant number, since it is smaller than the sum of its proper divisors (46820988).

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

40132242 is a wasteful number, since it uses less digits than its factorization.

40132242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229577 (or 2229574 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40132242 is about 6335.0013417520. The cubic root of 40132242 is about 342.3716591622.

Adding to 40132242 its reverse (24223104), we get a palindrome (64355346).

The spelling of 40132242 in words is "forty million, one hundred thirty-two thousand, two hundred forty-two".