190039442 has 8 divisors (see below), whose sum is σ = 285198732. Its totient is φ = 94973200.

The previous prime is 190039441. The next prime is 190039453. The reversal of 190039442 is 244930091.

It is a happy number.

190039442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 180123241 + 9916201 = 13421^2 + 3149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×190039442² = 72229979031342728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190039399 and 190039408.

It is not an unprimeable number, because it can be changed into a prime (190039441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17909 + ... + 26472.

Almost surely, 2^190039442 is an apocalyptic number.

190039442 is a deficient number, since it is larger than the sum of its proper divisors (95159290).

190039442 is a wasteful number, since it uses less digits than its factorization.

190039442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46524.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 190039442 is about 13785.4793895606. The cubic root of 190039442 is about 574.9294854928.

The spelling of 190039442 in words is "one hundred ninety million, thirty-nine thousand, four hundred forty-two".