20200010040 has 160 divisors (see below), whose sum is σ = 77593776480. Its totient is φ = 4617139968.

The previous prime is 20200010027. The next prime is 20200010041. The reversal of 20200010040 is 4001000202.

It is a super-2 number, since 2×20200010040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200010041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 422647 + ... + 468006.

It is an arithmetic number, because the mean of its divisors is an integer number (484961103).

Almost surely, 2^20200010040 is an apocalyptic number.

20200010040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200010040 is an abundant number, since it is smaller than the sum of its proper divisors (57393766440).

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

20200010040 is a wasteful number, since it uses less digits than its factorization.

20200010040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890683 (or 890670 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20200010040 its reverse (4001000202), we get a palindrome (24201010242).

The spelling of 20200010040 in words is "twenty billion, two hundred million, ten thousand, forty".