194952258 has 30 divisors (see below), whose sum is σ = 437236041. Its totient is φ = 64924848.

The previous prime is 194952257. The next prime is 194952259. The reversal of 194952258 is 852259491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194952257) and next prime (194952259).

It can be written as a sum of positive squares in 2 ways, for example, as 185422689 + 9529569 = 13617^2 + 3087^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9873.

It is not an unprimeable number, because it can be changed into a prime (194952257) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 177166 + ... + 178262.

Almost surely, 2^194952258 is an apocalyptic number.

194952258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194952258 is an abundant number, since it is smaller than the sum of its proper divisors (242283783).

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

194952258 is an frugal number, since it uses more digits than its factorization.

194952258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208 (or 1102 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 194952258 is about 13962.5305013096. The cubic root of 194952258 is about 579.8416710122.

Multiplying 194952258 by its product of digits (259200), we get a square (50531625273600 = 7108560²).

The spelling of 194952258 in words is "one hundred ninety-four million, nine hundred fifty-two thousand, two hundred fifty-eight".