40731268 has 6 divisors (see below), whose sum is σ = 71279726. Its totient is φ = 20365632.

The previous prime is 40731239. The next prime is 40731287. The reversal of 40731268 is 86213704.

It can be written as a sum of positive squares in only one way, i.e., 39715204 + 1016064 = 6302^2 + 1008^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5091405 + ... + 5091412.

Almost surely, 2^40731268 is an apocalyptic number.

It is an amenable number.

40731268 is a deficient number, since it is larger than the sum of its proper divisors (30548458).

40731268 is a wasteful number, since it uses less digits than its factorization.

40731268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182821 (or 10182819 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 40731268 is about 6382.1052952768. The cubic root of 40731268 is about 344.0667010555.

The spelling of 40731268 in words is "forty million, seven hundred thirty-one thousand, two hundred sixty-eight".