40057265 has 8 divisors (see below), whose sum is σ = 49726440. Its totient is φ = 30940672.

The previous prime is 40057231. The next prime is 40057279. The reversal of 40057265 is 56275004.

40057265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14615329 + 25441936 = 3823^2 + 5044^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40057265 - 2¹⁶ = 39991729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 137984 + ... + 138273.

It is an arithmetic number, because the mean of its divisors is an integer number (6215805).

Almost surely, 2^40057265 is an apocalyptic number.

It is an amenable number.

40057265 is a deficient number, since it is larger than the sum of its proper divisors (9669175).

40057265 is a wasteful number, since it uses less digits than its factorization.

40057265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276291.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 40057265 is about 6329.0808969391. The cubic root of 40057265 is about 342.1583144697.

The spelling of 40057265 in words is "forty million, fifty-seven thousand, two hundred sixty-five".