2102144442 has 16 divisors (see below), whose sum is σ = 4211458272. Its totient is φ = 699519920.

The previous prime is 2102144437. The next prime is 2102144449. The reversal of 2102144442 is 2444412012.

It is a super-2 number, since 2×2102144442² = 8838022510062982728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2102144449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294909 + ... + 301952.

It is an arithmetic number, because the mean of its divisors is an integer number (263216142).

Almost surely, 2^2102144442 is an apocalyptic number.

2102144442 is an abundant number, since it is smaller than the sum of its proper divisors (2109313830).

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

2102144442 is a wasteful number, since it uses less digits than its factorization.

2102144442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597453.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 2102144442 is about 45849.1487598189. The cubic root of 2102144442 is about 1281.0149099919.

Adding to 2102144442 its reverse (2444412012), we get a palindrome (4546556454).

The spelling of 2102144442 in words is "two billion, one hundred two million, one hundred forty-four thousand, four hundred forty-two".