40457353 has 4 divisors (see below), whose sum is σ = 40912020. Its totient is φ = 40002688.

The previous prime is 40457341. The next prime is 40457363. The reversal of 40457353 is 35375404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5031049 + 35426304 = 2243^2 + 5952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40457353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40457323) 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, 227200 + ... + 227377.

It is an arithmetic number, because the mean of its divisors is an integer number (10228005).

Almost surely, 2^40457353 is an apocalyptic number.

It is an amenable number.

40457353 is a deficient number, since it is larger than the sum of its proper divisors (454667).

40457353 is an equidigital number, since it uses as much as digits as its factorization.

40457353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454666.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 40457353 is about 6360.6094833750. The cubic root of 40457353 is about 343.2936906083.

The spelling of 40457353 in words is "forty million, four hundred fifty-seven thousand, three hundred fifty-three".