3123499940 has 48 divisors (see below), whose sum is σ = 7163190720. Its totient is φ = 1134622080.

The previous prime is 3123499909. The next prime is 3123499987. The reversal of 3123499940 is 499943213.

3123499940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 3123499891 and 3123499900.

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, 217214 + ... + 231146.

It is an arithmetic number, because the mean of its divisors is an integer number (149233140).

Almost surely, 2^3123499940 is an apocalyptic number.

It is an amenable number.

3123499940 is an abundant number, since it is smaller than the sum of its proper divisors (4039690780).

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

3123499940 is a wasteful number, since it uses less digits than its factorization.

3123499940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14972 (or 14970 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 3123499940 is about 55888.2808824891. The cubic root of 3123499940 is about 1461.7749008901.

The spelling of 3123499940 in words is "three billion, one hundred twenty-three million, four hundred ninety-nine thousand, nine hundred forty".