40402748738880 has 448 divisors, whose sum is σ = 155530850492160. Its totient is φ = 9791992627200.

The previous prime is 40402748738867. The next prime is 40402748738887. The reversal of 40402748738880 is 8883784720404.

40402748738880 is a `hidden beast` number, since 4 + 0 + 40 + 2 + 7 + 487 + 38 + 8 + 80 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402748738887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 368795472 + ... + 368905008.

Almost surely, 2^{40402748738880} is an apocalyptic number.

40402748738880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40402748738880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77765425246080).

40402748738880 is an abundant number, since it is smaller than the sum of its proper divisors (115128101753280).

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

40402748738880 is a wasteful number, since it uses less digits than its factorization.

40402748738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113455 (or 113439 counting only the distinct ones).

The product of its (nonzero) digits is 77070336, while the sum is 63.

The spelling of 40402748738880 in words is "forty trillion, four hundred two billion, seven hundred forty-eight million, seven hundred thirty-eight thousand, eight hundred eighty".