3249905880 has 128 divisors (see below), whose sum is σ = 10861905600. Its totient is φ = 772380672.

The previous prime is 3249905843. The next prime is 3249905891. The reversal of 3249905880 is 885099423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9322 + ... + 81158.

Almost surely, 2^3249905880 is an apocalyptic number.

3249905880 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 3249905880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5430952800).

3249905880 is an abundant number, since it is smaller than the sum of its proper divisors (7611999720).

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

3249905880 is a wasteful number, since it uses less digits than its factorization.

3249905880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71893 (or 71889 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 3249905880 is about 57007.9457619725. The cubic root of 3249905880 is about 1481.2337350846.

The spelling of 3249905880 in words is "three billion, two hundred forty-nine million, nine hundred five thousand, eight hundred eighty".