40202444 has 24 divisors (see below), whose sum is σ = 71559936. Its totient is φ = 19760000.

The previous prime is 40202441. The next prime is 40202447. The reversal of 40202444 is 44420204.

It is an interprime number because it is at equal distance from previous prime (40202441) and next prime (40202447).

It is not an unprimeable number, because it can be changed into a prime (40202441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76904 + ... + 77424.

It is an arithmetic number, because the mean of its divisors is an integer number (2981664).

Almost surely, 2^40202444 is an apocalyptic number.

It is an amenable number.

40202444 is a deficient number, since it is larger than the sum of its proper divisors (31357492).

40202444 is a wasteful number, since it uses less digits than its factorization.

40202444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40202444 is about 6340.5397246607. The cubic root of 40202444 is about 342.5711760010.

Adding to 40202444 its reverse (44420204), we get a palindrome (84622648).

The spelling of 40202444 in words is "forty million, two hundred two thousand, four hundred forty-four".