20140312040 has 32 divisors (see below), whose sum is σ = 45661635360. Its totient is φ = 7994625600.

The previous prime is 20140312033. The next prime is 20140312067. The reversal of 20140312040 is 4021304102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916546 + ... + 1927025.

It is an arithmetic number, because the mean of its divisors is an integer number (1426926105).

Almost surely, 2^20140312040 is an apocalyptic number.

20140312040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20140312040 is an abundant number, since it is smaller than the sum of its proper divisors (25521323320).

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

20140312040 is a wasteful number, since it uses less digits than its factorization.

20140312040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843713 (or 3843709 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20140312040 its reverse (4021304102), we get a palindrome (24161616142).

The spelling of 20140312040 in words is "twenty billion, one hundred forty million, three hundred twelve thousand, forty".