40457512 has 16 divisors (see below), whose sum is σ = 76135860. Its totient is φ = 20154624.

The previous prime is 40457507. The next prime is 40457513. The reversal of 40457512 is 21575404.

It can be written as a sum of positive squares in 2 ways, for example, as 37380996 + 3076516 = 6114^2 + 1754^2 .

It is not an unprimeable number, because it can be changed into a prime (40457513) 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, 6913 + ... + 11344.

Almost surely, 2^40457512 is an apocalyptic number.

It is an amenable number.

40457512 is a deficient number, since it is larger than the sum of its proper divisors (35678348).

40457512 is a wasteful number, since it uses less digits than its factorization.

40457512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18540 (or 18536 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 40457512 is about 6360.6219821650. The cubic root of 40457512 is about 343.2941403298.

The spelling of 40457512 in words is "forty million, four hundred fifty-seven thousand, five hundred twelve".