40143737448 has 48 divisors (see below), whose sum is σ = 108735490500. Its totient is φ = 13379662080.

The previous prime is 40143737437. The next prime is 40143737533. The reversal of 40143737448 is 84473734104.

It can be written as a sum of positive squares in 2 ways, for example, as 39864914244 + 278823204 = 199662^2 + 16698^2 .

It is a super-2 number, since 2×40143737448² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688308 + ... + 744348.

Almost surely, 2^40143737448 is an apocalyptic number.

It is an amenable number.

40143737448 is an abundant number, since it is smaller than the sum of its proper divisors (68591753052).

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

40143737448 is a wasteful number, since it uses less digits than its factorization.

40143737448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66002 (or 65995 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 40143737448 in words is "forty billion, one hundred forty-three million, seven hundred thirty-seven thousand, four hundred forty-eight".