40130391420 has 216 divisors, whose sum is σ = 149933098224. Its totient is φ = 8633060352.

The previous prime is 40130391419. The next prime is 40130391443. The reversal of 40130391420 is 2419303104.

It is a super-2 number, since 2×40130391420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16119 + ... + 283761.

It is an arithmetic number, because the mean of its divisors is an integer number (694134714).

Almost surely, 2^40130391420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40130391420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74966549112).

40130391420 is an abundant number, since it is smaller than the sum of its proper divisors (109802706804).

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

40130391420 is a wasteful number, since it uses less digits than its factorization.

40130391420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267689 (or 267677 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 40130391420 its reverse (2419303104), we get a palindrome (42549694524).

The spelling of 40130391420 in words is "forty billion, one hundred thirty million, three hundred ninety-one thousand, four hundred twenty".