40244019 has 16 divisors (see below), whose sum is σ = 54711168. Its totient is φ = 26307072.

The previous prime is 40244011. The next prime is 40244021. The reversal of 40244019 is 91044204.

It is not a de Polignac number, because 40244019 - 2³ = 40244011 is a prime.

It is a super-2 number, since 2×40244019² = 3239162130544722, 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 40244019.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69459 + ... + 70035.

It is an arithmetic number, because the mean of its divisors is an integer number (3419448).

Almost surely, 2^40244019 is an apocalyptic number.

40244019 is a deficient number, since it is larger than the sum of its proper divisors (14467149).

40244019 is a wasteful number, since it uses less digits than its factorization.

40244019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40244019 is about 6343.8173838786. The cubic root of 40244019 is about 342.6892242960.

The spelling of 40244019 in words is "forty million, two hundred forty-four thousand, nineteen".