3246547428 has 72 divisors (see below), whose sum is σ = 8591401728. Its totient is φ = 1031741568.

The previous prime is 3246547379. The next prime is 3246547433. The reversal of 3246547428 is 8247456423.

It is a happy number.

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, 252901 + ... + 265427.

It is an arithmetic number, because the mean of its divisors is an integer number (119325024).

Almost surely, 2^3246547428 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 3246547428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4295700864).

3246547428 is an abundant number, since it is smaller than the sum of its proper divisors (5344854300).

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

3246547428 is a wasteful number, since it uses less digits than its factorization.

3246547428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12873 (or 12868 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 3246547428 is about 56978.4821489657. The cubic root of 3246547428 is about 1480.7233236892.

The spelling of 3246547428 in words is "three billion, two hundred forty-six million, five hundred forty-seven thousand, four hundred twenty-eight".