10203839940 has 48 divisors (see below), whose sum is σ = 32652289152. Its totient is φ = 2332306176.

The previous prime is 10203839911. The next prime is 10203839957. The reversal of 10203839940 is 4993830201.

It is a super-2 number, since 2×10203839940² (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, 12147009 + ... + 12147848.

It is an arithmetic number, because the mean of its divisors is an integer number (680256024).

Almost surely, 2^10203839940 is an apocalyptic number.

10203839940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203839940 is an abundant number, since it is smaller than the sum of its proper divisors (22448449212).

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

10203839940 is a wasteful number, since it uses less digits than its factorization.

10203839940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24294876 (or 24294874 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 10203839940 in words is "ten billion, two hundred three million, eight hundred thirty-nine thousand, nine hundred forty".