194460090 has 32 divisors (see below), whose sum is σ = 509132736. Its totient is φ = 47141760.

The previous prime is 194460083. The next prime is 194460137. The reversal of 194460090 is 90064491.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294307 + ... + 294966.

It is an arithmetic number, because the mean of its divisors is an integer number (15910398).

Almost surely, 2^194460090 is an apocalyptic number.

194460090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194460090 is an abundant number, since it is smaller than the sum of its proper divisors (314672646).

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

194460090 is a wasteful number, since it uses less digits than its factorization.

194460090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589294.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 194460090 is about 13944.8947647517. The cubic root of 194460090 is about 579.3533121219.

The spelling of 194460090 in words is "one hundred ninety-four million, four hundred sixty thousand, ninety".