40448488440 has 32 divisors (see below), whose sum is σ = 121345465680. Its totient is φ = 10786263552.

The previous prime is 40448488337. The next prime is 40448488441. The reversal of 40448488440 is 4488484404.

It is a self number, because there is not a number n which added to its sum of digits gives 40448488440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40448488441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168535249 + ... + 168535488.

Almost surely, 2^40448488440 is an apocalyptic number.

40448488440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40448488440 is an abundant number, since it is smaller than the sum of its proper divisors (80896977240).

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

40448488440 is a wasteful number, since it uses less digits than its factorization.

40448488440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337070751 (or 337070747 counting only the distinct ones).

The product of its (nonzero) digits is 2097152, while the sum is 48.

The spelling of 40448488440 in words is "forty billion, four hundred forty-eight million, four hundred eighty-eight thousand, four hundred forty".