40344553 has 8 divisors (see below), whose sum is σ = 44575488. Its totient is φ = 36320064.

The previous prime is 40344523. The next prime is 40344559. The reversal of 40344553 is 35544304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40344553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40344559) 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, 51201 + ... + 51982.

It is an arithmetic number, because the mean of its divisors is an integer number (5571936).

Almost surely, 2^40344553 is an apocalyptic number.

It is an amenable number.

40344553 is a deficient number, since it is larger than the sum of its proper divisors (4230935).

40344553 is a wasteful number, since it uses less digits than its factorization.

40344553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103223.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 40344553 is about 6351.7362193340. The cubic root of 40344553 is about 342.9743455045.

Adding to 40344553 its reverse (35544304), we get a palindrome (75888857).

The spelling of 40344553 in words is "forty million, three hundred forty-four thousand, five hundred fifty-three".