191428600 has 48 divisors (see below), whose sum is σ = 485538120. Its totient is φ = 69609600.

The previous prime is 191428579. The next prime is 191428607. The reversal of 191428600 is 6824191.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191428607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41307 + ... + 45706.

Almost surely, 2^191428600 is an apocalyptic number.

191428600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191428600 is an abundant number, since it is smaller than the sum of its proper divisors (294109520).

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

191428600 is a wasteful number, since it uses less digits than its factorization.

191428600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87040 (or 87031 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 191428600 is about 13835.7724757239. The cubic root of 191428600 is about 576.3269668182.

The spelling of 191428600 in words is "one hundred ninety-one million, four hundred twenty-eight thousand, six hundred".