40332257 has 8 divisors (see below), whose sum is σ = 47340096. Its totient is φ = 33635952.

The previous prime is 40332181. The next prime is 40332277. The reversal of 40332257 is 75223304.

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

It is not a de Polignac number, because 40332257 - 2⁸ = 40332001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40332277) 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, 77603 + ... + 78120.

It is an arithmetic number, because the mean of its divisors is an integer number (5917512).

Almost surely, 2^40332257 is an apocalyptic number.

It is an amenable number.

40332257 is a deficient number, since it is larger than the sum of its proper divisors (7007839).

40332257 is a wasteful number, since it uses less digits than its factorization.

40332257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155767.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 40332257 is about 6350.7682212469. The cubic root of 40332257 is about 342.9394986603.

The spelling of 40332257 in words is "forty million, three hundred thirty-two thousand, two hundred fifty-seven".