191485424 has 40 divisors (see below), whose sum is σ = 405046992. Its totient is φ = 87160320.

The previous prime is 191485361. The next prime is 191485453. The reversal of 191485424 is 424584191.

It is a congruent number.

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, 8879 + ... + 21489.

Almost surely, 2^191485424 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 191485424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202523496).

191485424 is an abundant number, since it is smaller than the sum of its proper divisors (213561568).

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

191485424 is a wasteful number, since it uses less digits than its factorization.

191485424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12705 (or 12699 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 191485424 is about 13837.8258407887. The cubic root of 191485424 is about 576.3839871444.

The spelling of 191485424 in words is "one hundred ninety-one million, four hundred eighty-five thousand, four hundred twenty-four".