189365484 has 144 divisors (see below), whose sum is σ = 573913088. Its totient is φ = 47520000.

The previous prime is 189365479. The next prime is 189365489. The reversal of 189365484 is 484563981.

It is an interprime number because it is at equal distance from previous prime (189365479) and next prime (189365489).

It is not an unprimeable number, because it can be changed into a prime (189365489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 314784 + ... + 315384.

Almost surely, 2^189365484 is an apocalyptic number.

189365484 is a gapful number since it is divisible by the number (14) 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 189365484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286956544).

189365484 is an abundant number, since it is smaller than the sum of its proper divisors (384547604).

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

189365484 is a wasteful number, since it uses less digits than its factorization.

189365484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 655 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 189365484 is about 13761.0131894421. The cubic root of 189365484 is about 574.2490350221.

The spelling of 189365484 in words is "one hundred eighty-nine million, three hundred sixty-five thousand, four hundred eighty-four".