40242112 has 14 divisors (see below), whose sum is σ = 79855568. Its totient is φ = 20121024.

The previous prime is 40242079. The next prime is 40242113. The reversal of 40242112 is 21124204.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314328 + ... + 314455.

Almost surely, 2^40242112 is an apocalyptic number.

It is an amenable number.

40242112 is a deficient number, since it is larger than the sum of its proper divisors (39613456).

40242112 is an equidigital number, since it uses as much as digits as its factorization.

40242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628795 (or 628785 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40242112 is about 6343.6670782758. The cubic root of 40242112 is about 342.6838113288.

Adding to 40242112 its reverse (21124204), we get a palindrome (61366316).

The spelling of 40242112 in words is "forty million, two hundred forty-two thousand, one hundred twelve".