40446057 has 4 divisors (see below), whose sum is σ = 53928080. Its totient is φ = 26964036.

The previous prime is 40446053. The next prime is 40446083. The reversal of 40446057 is 75064404.

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 not a de Polignac number, because 40446057 - 2² = 40446053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40446053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6741007 + ... + 6741012.

It is an arithmetic number, because the mean of its divisors is an integer number (13482020).

Almost surely, 2^40446057 is an apocalyptic number.

It is an amenable number.

40446057 is a deficient number, since it is larger than the sum of its proper divisors (13482023).

40446057 is a wasteful number, since it uses less digits than its factorization.

40446057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13482022.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 40446057 is about 6359.7214561646. The cubic root of 40446057 is about 343.2617375663.

It can be divided in two parts, 4044 and 6057, that added together give a palindrome (10101).

The spelling of 40446057 in words is "forty million, four hundred forty-six thousand, fifty-seven".