190442001 has 16 divisors (see below), whose sum is σ = 265457664. Its totient is φ = 121214544.

The previous prime is 190441991. The next prime is 190442009. The reversal of 190442001 is 100244091.

190442001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 190442001 - 2⁷ = 190441873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190442009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39610 + ... + 44156.

It is an arithmetic number, because the mean of its divisors is an integer number (16591104).

Almost surely, 2^190442001 is an apocalyptic number.

It is an amenable number.

190442001 is a deficient number, since it is larger than the sum of its proper divisors (75015663).

190442001 is a wasteful number, since it uses less digits than its factorization.

190442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 190442001 is about 13800.0724998096. The cubic root of 190442001 is about 575.3351553317.

Adding to 190442001 its reverse (100244091), we get a palindrome (290686092).

The spelling of 190442001 in words is "one hundred ninety million, four hundred forty-two thousand, one".