190019436 has 24 divisors (see below), whose sum is σ = 444190320. Its totient is φ = 63223872.

The previous prime is 190019413. The next prime is 190019497. The reversal of 190019436 is 634910091.

It is a super-2 number, since 2×190019436² = 72214772115516192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190019397 and 190019406.

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 7 ways as a sum of consecutive naturals, for example, 7531 + ... + 20898.

It is an arithmetic number, because the mean of its divisors is an integer number (18507930).

Almost surely, 2^190019436 is an apocalyptic number.

It is an amenable number.

190019436 is an abundant number, since it is smaller than the sum of its proper divisors (254170884).

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

190019436 is a wasteful number, since it uses less digits than its factorization.

190019436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28993 (or 28991 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 190019436 is about 13784.7537518811. The cubic root of 190019436 is about 574.9093099566.

The spelling of 190019436 in words is "one hundred ninety million, nineteen thousand, four hundred thirty-six".