40531268 has 6 divisors (see below), whose sum is σ = 70929726. Its totient is φ = 20265632.

The previous prime is 40531259. The next prime is 40531319. The reversal of 40531268 is 86213504.

It can be written as a sum of positive squares in only one way, i.e., 26030404 + 14500864 = 5102^2 + 3808^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40531268.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066405 + ... + 5066412.

It is an arithmetic number, because the mean of its divisors is an integer number (11821621).

Almost surely, 2^40531268 is an apocalyptic number.

It is an amenable number.

40531268 is a deficient number, since it is larger than the sum of its proper divisors (30398458).

40531268 is a wasteful number, since it uses less digits than its factorization.

40531268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132821 (or 10132819 counting only the distinct ones).

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

The square root of 40531268 is about 6366.4172027915. The cubic root of 40531268 is about 343.5026276242.

The spelling of 40531268 in words is "forty million, five hundred thirty-one thousand, two hundred sixty-eight".