40457953 has 4 divisors (see below), whose sum is σ = 40691988. Its totient is φ = 40223920.

The previous prime is 40457951. The next prime is 40457957. The reversal of 40457953 is 35975404.

40457953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37859409 + 2598544 = 6153^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 40457953 - 2¹ = 40457951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40457951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116758 + ... + 117103.

It is an arithmetic number, because the mean of its divisors is an integer number (10172997).

Almost surely, 2^40457953 is an apocalyptic number.

It is an amenable number.

40457953 is a deficient number, since it is larger than the sum of its proper divisors (234035).

40457953 is a wasteful number, since it uses less digits than its factorization.

40457953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234034.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 40457953 is about 6360.6566484916. The cubic root of 40457953 is about 343.2953876644.

The spelling of 40457953 in words is "forty million, four hundred fifty-seven thousand, nine hundred fifty-three".