190213408 has 192 divisors, whose sum is σ = 522547200. Its totient is φ = 65802240.

The previous prime is 190213379. The next prime is 190213421. The reversal of 190213408 is 804312091.

It is a happy number.

190213408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190213408² = 72362281165948928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 31 ways as a sum of consecutive naturals, for example, 795753 + ... + 795991.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^190213408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190213408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261273600).

190213408 is an abundant number, since it is smaller than the sum of its proper divisors (332333792).

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

190213408 is a wasteful number, since it uses less digits than its factorization.

190213408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 190213408 is about 13791.7877013823. The cubic root of 190213408 is about 575.1048660660.

Adding to 190213408 its reverse (804312091), we get a palindrome (994525499).

The spelling of 190213408 in words is "one hundred ninety million, two hundred thirteen thousand, four hundred eight".