40244012 has 12 divisors (see below), whose sum is σ = 72330720. Its totient is φ = 19578096.

The previous prime is 40244011. The next prime is 40244021. The reversal of 40244012 is 21044204.

It is a super-2 number, since 2×40244012² = 3239161003712288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40244011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135812 + ... + 136107.

It is an arithmetic number, because the mean of its divisors is an integer number (6027560).

Almost surely, 2^40244012 is an apocalyptic number.

It is an amenable number.

40244012 is a deficient number, since it is larger than the sum of its proper divisors (32086708).

40244012 is a wasteful number, since it uses less digits than its factorization.

40244012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271960 (or 271958 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40244012 is about 6343.8168321603. The cubic root of 40244012 is about 342.6892044270.

Adding to 40244012 its reverse (21044204), we get a palindrome (61288216).

The spelling of 40244012 in words is "forty million, two hundred forty-four thousand, twelve".