40244868458 has 4 divisors (see below), whose sum is σ = 60367302690. Its totient is φ = 20122434228.

The previous prime is 40244868427. The next prime is 40244868463. The reversal of 40244868458 is 85486844204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31693612729 + 8551255729 = 178027^2 + 92473^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061217113 + ... + 10061217116.

Almost surely, 2^40244868458 is an apocalyptic number.

40244868458 is a deficient number, since it is larger than the sum of its proper divisors (20122434232).

40244868458 is a wasteful number, since it uses less digits than its factorization.

40244868458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20122434231.

The product of its (nonzero) digits is 7864320, while the sum is 53.

The spelling of 40244868458 in words is "forty billion, two hundred forty-four million, eight hundred sixty-eight thousand, four hundred fifty-eight".