40340231402120 has 192 divisors, whose sum is σ = 108192879612720. Its totient is φ = 13409177075712.

The previous prime is 40340231402113. The next prime is 40340231402161. The reversal of 40340231402120 is 2120413204304.

It can be written as a sum of positive squares in 8 ways, for example, as 4255053077284 + 36085178324836 = 2062778^2 + 6007094^2 .

It is a super-2 number, since 2×40340231402120² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 40340231402120.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 363152 + ... + 8989568.

Almost surely, 2^{40340231402120} is an apocalyptic number.

40340231402120 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 40340231402120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54096439806360).

40340231402120 is an abundant number, since it is smaller than the sum of its proper divisors (67852648210600).

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

40340231402120 is a wasteful number, since it uses less digits than its factorization.

40340231402120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8626504 (or 8626477 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 40340231402120 its reverse (2120413204304), we get a palindrome (42460644606424).

The spelling of 40340231402120 in words is "forty trillion, three hundred forty billion, two hundred thirty-one million, four hundred two thousand, one hundred twenty".