40332557 has 4 divisors (see below), whose sum is σ = 40580160. Its totient is φ = 40084956.

The previous prime is 40332541. The next prime is 40332559. The reversal of 40332557 is 75523304.

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 40332557 - 2⁴ = 40332541 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 (40332559) 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, 123557 + ... + 123882.

It is an arithmetic number, because the mean of its divisors is an integer number (10145040).

Almost surely, 2^40332557 is an apocalyptic number.

It is an amenable number.

40332557 is a deficient number, since it is larger than the sum of its proper divisors (247603).

40332557 is a wasteful number, since it uses less digits than its factorization.

40332557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247602.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 40332557 is about 6350.7918403928. The cubic root of 40332557 is about 342.9403489441.

The spelling of 40332557 in words is "forty million, three hundred thirty-two thousand, five hundred fifty-seven".