40133453 has 12 divisors (see below), whose sum is σ = 42793920. Its totient is φ = 37629576.

The previous prime is 40133449. The next prime is 40133497. The reversal of 40133453 is 35433104.

It is not a de Polignac number, because 40133453 - 2² = 40133449 is a prime.

It is a super-2 number, since 2×40133453² = 3221388099406418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40133153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38108 + ... + 39146.

It is an arithmetic number, because the mean of its divisors is an integer number (3566160).

Almost surely, 2^40133453 is an apocalyptic number.

It is an amenable number.

40133453 is a deficient number, since it is larger than the sum of its proper divisors (2660467).

40133453 is a wasteful number, since it uses less digits than its factorization.

40133453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 40133453 is about 6335.0969211213. The cubic root of 40133453 is about 342.3751028431.

Adding to 40133453 its reverse (35433104), we get a palindrome (75566557).

The spelling of 40133453 in words is "forty million, one hundred thirty-three thousand, four hundred fifty-three".