1900442102 has 32 divisors (see below), whose sum is σ = 3098360160. Its totient is φ = 869045760.

The previous prime is 1900442101. The next prime is 1900442107. The reversal of 1900442102 is 2012440091.

It is a super-2 number, since 2×1900442102² = 7223360366108356808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900442101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2156702 + ... + 2157582.

It is an arithmetic number, because the mean of its divisors is an integer number (96823755).

Almost surely, 2^1900442102 is an apocalyptic number.

1900442102 is a deficient number, since it is larger than the sum of its proper divisors (1197918058).

1900442102 is a wasteful number, since it uses less digits than its factorization.

1900442102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1900442102 is about 43594.0603981781. The cubic root of 1900442102 is about 1238.6583872474.

Adding to 1900442102 its reverse (2012440091), we get a palindrome (3912882193).

The spelling of 1900442102 in words is "one billion, nine hundred million, four hundred forty-two thousand, one hundred two".