191332416 has 168 divisors, whose sum is σ = 592860384. Its totient is φ = 53821440.

The previous prime is 191332411. The next prime is 191332483. The reversal of 191332416 is 614233191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191332411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2620956 + ... + 2621028.

Almost surely, 2^191332416 is an apocalyptic number.

191332416 is a gapful number since it is divisible by the number (16) 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 191332416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296430192).

191332416 is an abundant number, since it is smaller than the sum of its proper divisors (401527968).

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

191332416 is a wasteful number, since it uses less digits than its factorization.

191332416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 106 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 191332416 is about 13832.2961217579. The cubic root of 191332416 is about 576.2304247832.

The spelling of 191332416 in words is "one hundred ninety-one million, three hundred thirty-two thousand, four hundred sixteen".