40899533 has 4 divisors (see below), whose sum is σ = 43052160. Its totient is φ = 38746908.

The previous prime is 40899511. The next prime is 40899539. The reversal of 40899533 is 33599804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40899533 - 2⁸ = 40899277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40899539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076285 + ... + 1076322.

It is an arithmetic number, because the mean of its divisors is an integer number (10763040).

Almost surely, 2^40899533 is an apocalyptic number.

It is an amenable number.

40899533 is a deficient number, since it is larger than the sum of its proper divisors (2152627).

40899533 is a wasteful number, since it uses less digits than its factorization.

40899533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152626.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 40899533 is about 6395.2742708972. The cubic root of 40899533 is about 344.5398416035.

The spelling of 40899533 in words is "forty million, eight hundred ninety-nine thousand, five hundred thirty-three".