2111455442 has 16 divisors (see below), whose sum is σ = 3182487840. Its totient is φ = 1050638688.

The previous prime is 2111455441. The next prime is 2111455447. The reversal of 2111455442 is 2445541112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2111455441) 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, 392213 + ... + 397559.

It is an arithmetic number, because the mean of its divisors is an integer number (198905490).

Almost surely, 2^2111455442 is an apocalyptic number.

2111455442 is a deficient number, since it is larger than the sum of its proper divisors (1071032398).

2111455442 is a wasteful number, since it uses less digits than its factorization.

2111455442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265.

The product of its digits is 6400, while the sum is 29.

The square root of 2111455442 is about 45950.5760790874. The cubic root of 2111455442 is about 1282.9034517822.

Adding to 2111455442 its reverse (2445541112), we get a palindrome (4556996554).

The spelling of 2111455442 in words is "two billion, one hundred eleven million, four hundred fifty-five thousand, four hundred forty-two".