40190444 has 12 divisors (see below), whose sum is σ = 80380944. Its totient is φ = 17224464.

The previous prime is 40190443. The next prime is 40190459. The reversal of 40190444 is 44409104.

40190444 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40190443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717659 + ... + 717714.

It is an arithmetic number, because the mean of its divisors is an integer number (6698412).

Almost surely, 2^40190444 is an apocalyptic number.

It is an amenable number.

40190444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40190444 is a wasteful number, since it uses less digits than its factorization.

40190444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435384 (or 1435382 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 40190444 is about 6339.5933623538. The cubic root of 40190444 is about 342.5370879972.

Adding to 40190444 its reverse (44409104), we get a palindrome (84599548).

The spelling of 40190444 in words is "forty million, one hundred ninety thousand, four hundred forty-four".