40244392 has 16 divisors (see below), whose sum is σ = 76003200. Its totient is φ = 19976880.

The previous prime is 40244387. The next prime is 40244441. The reversal of 40244392 is 29344204.

It is a super-2 number, since 2×40244392² = 3239222174899328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40244392.

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, 16984 + ... + 19207.

It is an arithmetic number, because the mean of its divisors is an integer number (4750200).

Almost surely, 2^40244392 is an apocalyptic number.

It is an amenable number.

40244392 is a deficient number, since it is larger than the sum of its proper divisors (35758808).

40244392 is a wasteful number, since it uses less digits than its factorization.

40244392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36336 (or 36332 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 40244392 is about 6343.8467825130. The cubic root of 40244392 is about 342.6902830263.

Adding to 40244392 its reverse (29344204), we get a palindrome (69588596).

The spelling of 40244392 in words is "forty million, two hundred forty-four thousand, three hundred ninety-two".