189767448 has 112 divisors (see below), whose sum is σ = 574743120. Its totient is φ = 58366656.

The previous prime is 189767419. The next prime is 189767483. The reversal of 189767448 is 844767981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 189767394 and 189767403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 74565 + ... + 77067.

It is an arithmetic number, because the mean of its divisors is an integer number (5131635).

Almost surely, 2^189767448 is an apocalyptic number.

189767448 is a gapful number since it is divisible by the number (18) 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 189767448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287371560).

189767448 is an abundant number, since it is smaller than the sum of its proper divisors (384975672).

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

189767448 is a wasteful number, since it uses less digits than its factorization.

189767448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540 (or 2521 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 189767448 is about 13775.6106216748. The cubic root of 189767448 is about 574.6550652053.

The spelling of 189767448 in words is "one hundred eighty-nine million, seven hundred sixty-seven thousand, four hundred forty-eight".