40358491344 has 30 divisors (see below), whose sum is σ = 112947722706. Its totient is φ = 13452830400.

The previous prime is 40358491343. The next prime is 40358491363. The reversal of 40358491344 is 44319485304.

It can be written as a sum of positive squares in only one way, i.e., 25453011600 + 14905479744 = 159540^2 + 122088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40358491344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40358491343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140133507 + ... + 140133794.

Almost surely, 2^40358491344 is an apocalyptic number.

It is an amenable number.

40358491344 is an abundant number, since it is smaller than the sum of its proper divisors (72589231362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40358491344 is a wasteful number, since it uses less digits than its factorization.

40358491344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280267315 (or 280267306 counting only the distinct ones).

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

The spelling of 40358491344 in words is "forty billion, three hundred fifty-eight million, four hundred ninety-one thousand, three hundred forty-four".