40538612 has 6 divisors (see below), whose sum is σ = 70942578. Its totient is φ = 20269304.

The previous prime is 40538599. The next prime is 40538623. The reversal of 40538612 is 21683504.

40538612 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 only one way, i.e., 40398736 + 139876 = 6356^2 + 374^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5067323 + ... + 5067330.

It is an arithmetic number, because the mean of its divisors is an integer number (11823763).

Almost surely, 2^40538612 is an apocalyptic number.

It is an amenable number.

40538612 is a deficient number, since it is larger than the sum of its proper divisors (30403966).

40538612 is a wasteful number, since it uses less digits than its factorization.

40538612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134657 (or 10134655 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40538612 is about 6366.9939531933. The cubic root of 40538612 is about 343.5233731792.

The spelling of 40538612 in words is "forty million, five hundred thirty-eight thousand, six hundred twelve".