190009446 has 24 divisors (see below), whose sum is σ = 417708312. Its totient is φ = 57578400.

The previous prime is 190009433. The next prime is 190009451. The reversal of 190009446 is 644900091.

It is a super-2 number, since 2×190009446² = 72207179138453832, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130135 + ... + 131586.

It is an arithmetic number, because the mean of its divisors is an integer number (17404513).

Almost surely, 2^190009446 is an apocalyptic number.

190009446 is an abundant number, since it is smaller than the sum of its proper divisors (227698866).

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

190009446 is a wasteful number, since it uses less digits than its factorization.

190009446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261748 (or 261737 counting only the distinct ones).

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

The square root of 190009446 is about 13784.3913902646. The cubic root of 190009446 is about 574.8992347685.

The spelling of 190009446 in words is "one hundred ninety million, nine thousand, four hundred forty-six".