40340254120 has 32 divisors (see below), whose sum is σ = 93693496320. Its totient is φ = 15615581760.

The previous prime is 40340254109. The next prime is 40340254121. The reversal of 40340254120 is 2145204304.

It is a happy number.

It is a super-2 number, since 2×40340254120² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40340254121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16264992 + ... + 16267471.

It is an arithmetic number, because the mean of its divisors is an integer number (2927921760).

Almost surely, 2^40340254120 is an apocalyptic number.

40340254120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40340254120 is an abundant number, since it is smaller than the sum of its proper divisors (53353242200).

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

40340254120 is a wasteful number, since it uses less digits than its factorization.

40340254120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32532505 (or 32532501 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 40340254120 its reverse (2145204304), we get a palindrome (42485458424).

The spelling of 40340254120 in words is "forty billion, three hundred forty million, two hundred fifty-four thousand, one hundred twenty".