40545453 has 16 divisors (see below), whose sum is σ = 58337216. Its totient is φ = 24900480.

The previous prime is 40545437. The next prime is 40545457. The reversal of 40545453 is 35454504.

It is not a de Polignac number, because 40545453 - 2⁴ = 40545437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40545453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40545457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30033 + ... + 31353.

It is an arithmetic number, because the mean of its divisors is an integer number (3646076).

Almost surely, 2^40545453 is an apocalyptic number.

It is an amenable number.

40545453 is a deficient number, since it is larger than the sum of its proper divisors (17791763).

40545453 is a wasteful number, since it uses less digits than its factorization.

40545453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 40545453 is about 6367.5311542230. The cubic root of 40545453 is about 343.5426955906.

Adding to 40545453 its reverse (35454504), we get a palindrome (75999957).

The spelling of 40545453 in words is "forty million, five hundred forty-five thousand, four hundred fifty-three".