40344453552 has 40 divisors (see below), whose sum is σ = 112240340464. Its totient is φ = 12413677824.

The previous prime is 40344453521. The next prime is 40344453581. The reversal of 40344453552 is 25535444304.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 40344453552.

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, 32326663 + ... + 32327910.

Almost surely, 2^40344453552 is an apocalyptic number.

It is an amenable number.

40344453552 is an abundant number, since it is smaller than the sum of its proper divisors (71895886912).

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

40344453552 is a wasteful number, since it uses less digits than its factorization.

40344453552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64654597 (or 64654591 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 39.

Adding to 40344453552 its reverse (25535444304), we get a palindrome (65879897856).

The spelling of 40344453552 in words is "forty billion, three hundred forty-four million, four hundred fifty-three thousand, five hundred fifty-two".