194992530 has 32 divisors (see below), whose sum is σ = 478868544. Its totient is φ = 50788416.

The previous prime is 194992517. The next prime is 194992547. The reversal of 194992530 is 35299491.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74289 + ... + 76868.

It is an arithmetic number, because the mean of its divisors is an integer number (14964642).

Almost surely, 2^194992530 is an apocalyptic number.

194992530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194992530 is an abundant number, since it is smaller than the sum of its proper divisors (283876014).

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

194992530 is a wasteful number, since it uses less digits than its factorization.

194992530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151210.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 194992530 is about 13963.9725723019. The cubic root of 194992530 is about 579.8815949339.

The spelling of 194992530 in words is "one hundred ninety-four million, nine hundred ninety-two thousand, five hundred thirty".