187449472 has 64 divisors (see below), whose sum is σ = 430309440. Its totient is φ = 79672320.

The previous prime is 187449461. The next prime is 187449481. The reversal of 187449472 is 274944781.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116578 + ... + 118174.

It is an arithmetic number, because the mean of its divisors is an integer number (6723585).

Almost surely, 2^187449472 is an apocalyptic number.

187449472 is the 11179-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 187449472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215154720).

187449472 is an abundant number, since it is smaller than the sum of its proper divisors (242859968).

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

187449472 is a wasteful number, since it uses less digits than its factorization.

187449472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1737 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 187449472 is about 13691.2187916197. The cubic root of 187449472 is about 572.3057032165.

The spelling of 187449472 in words is "one hundred eighty-seven million, four hundred forty-nine thousand, four hundred seventy-two".