20200234440 has 64 divisors (see below), whose sum is σ = 60730637760. Its totient is φ = 5375179520.

The previous prime is 20200234433. The next prime is 20200234487. The reversal of 20200234440 is 4443200202.

It is a super-2 number, since 2×20200234440² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124191 + ... + 236270.

It is an arithmetic number, because the mean of its divisors is an integer number (948916215).

Almost surely, 2^20200234440 is an apocalyptic number.

20200234440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200234440 is an abundant number, since it is smaller than the sum of its proper divisors (40530403320).

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

20200234440 is a wasteful number, since it uses less digits than its factorization.

20200234440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360942 (or 360938 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20200234440 its reverse (4443200202), we get a palindrome (24643434642).

The spelling of 20200234440 in words is "twenty billion, two hundred million, two hundred thirty-four thousand, four hundred forty".