40020894298902 has 64 divisors (see below), whose sum is σ = 88174264628736. Its totient is φ = 12008683714560.

The previous prime is 40020894298867. The next prime is 40020894298937. The reversal of 40020894298902 is 20989249802004.

It is an interprime number because it is at equal distance from previous prime (40020894298867) and next prime (40020894298937).

It is a super-2 number, since 2×40020894298902² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74326198 + ... + 74862710.

It is an arithmetic number, because the mean of its divisors is an integer number (1377722884824).

Almost surely, 2^{40020894298902} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40020894298902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44087132314368).

40020894298902 is an abundant number, since it is smaller than the sum of its proper divisors (48153370329834).

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

40020894298902 is a wasteful number, since it uses less digits than its factorization.

40020894298902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547605.

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 40020894298902 in words is "forty trillion, twenty billion, eight hundred ninety-four million, two hundred ninety-eight thousand, nine hundred two".