352781616 has 80 divisors (see below), whose sum is σ = 1002221568. Its totient is φ = 106041600.

The previous prime is 352781609. The next prime is 352781617. The reversal of 352781616 is 616187253.

It is not an unprimeable number, because it can be changed into a prime (352781617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64426 + ... + 69686.

Almost surely, 2^352781616 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 352781616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501110784).

352781616 is an abundant number, since it is smaller than the sum of its proper divisors (649439952).

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

352781616 is a wasteful number, since it uses less digits than its factorization.

352781616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410 (or 5404 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 352781616 is about 18782.4816251740. The cubic root of 352781616 is about 706.5918899557.

The spelling of 352781616 in words is "three hundred fifty-two million, seven hundred eighty-one thousand, six hundred sixteen".