10039439540 has 48 divisors (see below), whose sum is σ = 22711888080. Its totient is φ = 3705676800.

The previous prime is 10039439521. The next prime is 10039439567. The reversal of 10039439540 is 4593493001.

It can be written as a sum of positive squares in 8 ways, for example, as 37039396 + 10002400144 = 6086^2 + 100012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10039439494 and 10039439503.

It is a congruent number.

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, 1583096 + ... + 1589424.

It is an arithmetic number, because the mean of its divisors is an integer number (473164335).

Almost surely, 2^10039439540 is an apocalyptic number.

10039439540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10039439540 is an abundant number, since it is smaller than the sum of its proper divisors (12672448540).

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

10039439540 is a wasteful number, since it uses less digits than its factorization.

10039439540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12452 (or 12450 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 10039439540 in words is "ten billion, thirty-nine million, four hundred thirty-nine thousand, five hundred forty".