190045238 has 4 divisors (see below), whose sum is σ = 285067860. Its totient is φ = 95022618.

The previous prime is 190045231. The next prime is 190045241. The reversal of 190045238 is 832540091.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×190045238² = 72234384972953288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190045231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47511308 + ... + 47511311.

It is an arithmetic number, because the mean of its divisors is an integer number (71266965).

Almost surely, 2^190045238 is an apocalyptic number.

190045238 is a deficient number, since it is larger than the sum of its proper divisors (95022622).

190045238 is an equidigital number, since it uses as much as digits as its factorization.

190045238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95022621.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 190045238 is about 13785.6896091563. The cubic root of 190045238 is about 574.9353303451.

It can be divided in two parts, 19004 and 5238, that added together give a palindrome (24242).

The spelling of 190045238 in words is "one hundred ninety million, forty-five thousand, two hundred thirty-eight".