40445242299 has 80 divisors (see below), whose sum is σ = 76562171136. Its totient is φ = 20665886400.

The previous prime is 40445242273. The next prime is 40445242303. The reversal of 40445242299 is 99224254404.

It is a happy number.

It is not a de Polignac number, because 40445242299 - 2⁵ = 40445242267 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40445242219) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 327304 + ... + 433610.

Almost surely, 2^40445242299 is an apocalyptic number.

40445242299 is a deficient number, since it is larger than the sum of its proper divisors (36116928837).

40445242299 is a wasteful number, since it uses less digits than its factorization.

40445242299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106398 (or 106389 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 40445242299 in words is "forty billion, four hundred forty-five million, two hundred forty-two thousand, two hundred ninety-nine".