40240868 has 6 divisors (see below), whose sum is σ = 70421526. Its totient is φ = 20120432.

The previous prime is 40240861. The next prime is 40240897. The reversal of 40240868 is 86804204.

It can be written as a sum of positive squares in only one way, i.e., 34199104 + 6041764 = 5848^2 + 2458^2 .

It is not an unprimeable number, because it can be changed into a prime (40240861) 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 as a sum of consecutive naturals, namely, 5030105 + ... + 5030112.

It is an arithmetic number, because the mean of its divisors is an integer number (11736921).

Almost surely, 2^40240868 is an apocalyptic number.

It is an amenable number.

40240868 is a deficient number, since it is larger than the sum of its proper divisors (30180658).

40240868 is a wasteful number, since it uses less digits than its factorization.

40240868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060221 (or 10060219 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 40240868 is about 6343.5690269753. The cubic root of 40240868 is about 342.6802801767.

The spelling of 40240868 in words is "forty million, two hundred forty thousand, eight hundred sixty-eight".