2126442 has 32 divisors (see below), whose sum is σ = 4677120. Its totient is φ = 641520.

The previous prime is 2126441. The next prime is 2126447. The reversal of 2126442 is 2446212.

It is an Ulam number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2126441) 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, 2217 + ... + 3027.

It is an arithmetic number, because the mean of its divisors is an integer number (146160).

2^2126442 is an apocalyptic number.

2126442 is an abundant number, since it is smaller than the sum of its proper divisors (2550678).

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

2126442 is a wasteful number, since it uses less digits than its factorization.

2126442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858.

The product of its digits is 768, while the sum is 21.

The square root of 2126442 is about 1458.2324917516. The cubic root of 2126442 is about 128.5931536481.

The spelling of 2126442 in words is "two million, one hundred twenty-six thousand, four hundred forty-two".