20314001540 has 72 divisors (see below), whose sum is σ = 50252549760. Its totient is φ = 6876612288.

The previous prime is 20314001507. The next prime is 20314001611. The reversal of 20314001540 is 4510041302.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53774 + ... + 208613.

It is an arithmetic number, because the mean of its divisors is an integer number (697952080).

Almost surely, 2^20314001540 is an apocalyptic number.

20314001540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20314001540 is an abundant number, since it is smaller than the sum of its proper divisors (29938548220).

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

20314001540 is a wasteful number, since it uses less digits than its factorization.

20314001540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262489 (or 262480 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20314001540 its reverse (4510041302), we get a palindrome (24824042842).

The spelling of 20314001540 in words is "twenty billion, three hundred fourteen million, one thousand, five hundred forty".