3115299840 has 176 divisors, whose sum is σ = 10048837632. Its totient is φ = 823689216.

The previous prime is 3115299823. The next prime is 3115299911. The reversal of 3115299840 is 489925113.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3115299792 and 3115299801.

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, 1949922 + ... + 1951518.

Almost surely, 2^3115299840 is an apocalyptic number.

3115299840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3115299840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5024418816).

3115299840 is an abundant number, since it is smaller than the sum of its proper divisors (6933537792).

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

3115299840 is a wasteful number, since it uses less digits than its factorization.

3115299840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3115299840 is about 55814.8711366424. The cubic root of 3115299840 is about 1460.4945844234.

The spelling of 3115299840 in words is "three billion, one hundred fifteen million, two hundred ninety-nine thousand, eight hundred forty".