40252451444 has 24 divisors (see below), whose sum is σ = 74155972800. Its totient is φ = 19065222720.

The previous prime is 40252451411. The next prime is 40252451483. The reversal of 40252451444 is 44415425204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291112 + ... + 1321920.

It is an arithmetic number, because the mean of its divisors is an integer number (3089832200).

Almost surely, 2^40252451444 is an apocalyptic number.

It is an amenable number.

40252451444 is a deficient number, since it is larger than the sum of its proper divisors (33903521356).

40252451444 is a wasteful number, since it uses less digits than its factorization.

40252451444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48023 (or 48021 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 40252451444 its reverse (44415425204), we get a palindrome (84667876648).

The spelling of 40252451444 in words is "forty billion, two hundred fifty-two million, four hundred fifty-one thousand, four hundred forty-four".