354889984 has 72 divisors (see below), whose sum is σ = 738194688. Its totient is φ = 170096640.

The previous prime is 354889979. The next prime is 354889987. The reversal of 354889984 is 489988453.

It is not an unprimeable number, because it can be changed into a prime (354889987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563279 + ... + 1563505.

It is an arithmetic number, because the mean of its divisors is an integer number (10252704).

Almost surely, 2^354889984 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 354889984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369097344).

354889984 is an abundant number, since it is smaller than the sum of its proper divisors (383304704).

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

354889984 is a wasteful number, since it uses less digits than its factorization.

354889984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 457 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 58.

The square root of 354889984 is about 18838.5239336844. The cubic root of 354889984 is about 707.9967229359.

The spelling of 354889984 in words is "three hundred fifty-four million, eight hundred eighty-nine thousand, nine hundred eighty-four".