40220400013040 has 160 divisors (see below), whose sum is σ = 106674415900416. Its totient is φ = 13971164037120.

The previous prime is 40220400012983. The next prime is 40220400013051. The reversal of 40220400013040 is 4031000402204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41654120 + ... + 42608760.

Almost surely, 2^{40220400013040} is an apocalyptic number.

40220400013040 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 40220400013040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53337207950208).

40220400013040 is an abundant number, since it is smaller than the sum of its proper divisors (66454015887376).

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

40220400013040 is a wasteful number, since it uses less digits than its factorization.

40220400013040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957067 (or 957061 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40220400013040 its reverse (4031000402204), we get a palindrome (44251400415244).

The spelling of 40220400013040 in words is "forty trillion, two hundred twenty billion, four hundred million, thirteen thousand, forty".