3497345280 has 648 divisors, whose sum is σ = 14397825624. Its totient is φ = 778567680.

The previous prime is 3497345279. The next prime is 3497345297. The reversal of 3497345280 is 825437943.

3497345280 is a `hidden beast` number, since 3 + 4 + 97 + 34 + 528 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 278784 + 3497066496 = 528^2 + 59136^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18120864 + ... + 18121056.

Almost surely, 2^3497345280 is an apocalyptic number.

3497345280 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 3497345280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7198912812).

3497345280 is an abundant number, since it is smaller than the sum of its proper divisors (10900480344).

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

3497345280 is a wasteful number, since it uses less digits than its factorization.

3497345280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 3497345280 is about 59138.3570958815. The cubic root of 3497345280 is about 1517.9105177247.

The spelling of 3497345280 in words is "three billion, four hundred ninety-seven million, three hundred forty-five thousand, two hundred eighty".