40244018 has 16 divisors (see below), whose sum is σ = 62406720. Its totient is φ = 19453200.

The previous prime is 40244011. The next prime is 40244021. The reversal of 40244018 is 81044204.

It is a junction number, because it is equal to n+sod(n) for n = 40243984 and 40244002.

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 7 ways as a sum of consecutive naturals, for example, 4403 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (3900420).

Almost surely, 2^40244018 is an apocalyptic number.

40244018 is a deficient number, since it is larger than the sum of its proper divisors (22162702).

40244018 is a wasteful number, since it uses less digits than its factorization.

40244018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 40244018 is about 6343.8173050617. The cubic root of 40244018 is about 342.6892214576.

The spelling of 40244018 in words is "forty million, two hundred forty-four thousand, eighteen".