3249428140 has 72 divisors (see below), whose sum is σ = 7962252480. Its totient is φ = 1110670848.

The previous prime is 3249428129. The next prime is 3249428167. The reversal of 3249428140 is 418249423.

3249428140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3249428140.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325341 + ... + 335179.

It is an arithmetic number, because the mean of its divisors is an integer number (110586840).

Almost surely, 2^3249428140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3249428140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3981126240).

3249428140 is an abundant number, since it is smaller than the sum of its proper divisors (4712824340).

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

3249428140 is a wasteful number, since it uses less digits than its factorization.

3249428140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199 (or 10190 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 3249428140 is about 57003.7554903184. The cubic root of 3249428140 is about 1481.1611504921.

The spelling of 3249428140 in words is "three billion, two hundred forty-nine million, four hundred twenty-eight thousand, one hundred forty".