40242012 has 48 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 13043968.

The previous prime is 40241989. The next prime is 40242079. The reversal of 40242012 is 21024204.

It is a junction number, because it is equal to n+sod(n) for n = 40241982 and 40242000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79753 + ... + 80255.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^40242012 is an apocalyptic number.

It is an amenable number.

40242012 is an abundant number, since it is smaller than the sum of its proper divisors (56284068).

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

40242012 is a wasteful number, since it uses less digits than its factorization.

40242012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40242012 is about 6343.6591963945. The cubic root of 40242012 is about 342.6835274768.

Adding to 40242012 its reverse (21024204), we get a palindrome (61266216).

The spelling of 40242012 in words is "forty million, two hundred forty-two thousand, twelve".