3109269240 has 640 divisors, whose sum is σ = 13264542720. Its totient is φ = 639809280.

The previous prime is 3109269227. The next prime is 3109269257. The reversal of 3109269240 is 429629013.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3109269195 and 3109269204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 30187029 + ... + 30187131.

It is an arithmetic number, because the mean of its divisors is an integer number (20725848).

Almost surely, 2^3109269240 is an apocalyptic number.

3109269240 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 3109269240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6632271360).

3109269240 is an abundant number, since it is smaller than the sum of its proper divisors (10155273480).

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

3109269240 is a wasteful number, since it uses less digits than its factorization.

3109269240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3109269240 is about 55760.8217299566. The cubic root of 3109269240 is about 1459.5515667895.

The spelling of 3109269240 in words is "three billion, one hundred nine million, two hundred sixty-nine thousand, two hundred forty".