2131446 has 16 divisors (see below), whose sum is σ = 4295664. Its totient is φ = 705024.

The previous prime is 2131429. The next prime is 2131447. The reversal of 2131446 is 6441312.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131447) 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, 475 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (268479).

2^2131446 is an apocalyptic number.

2131446 is an abundant number, since it is smaller than the sum of its proper divisors (2164218).

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

2131446 is a wasteful number, since it uses less digits than its factorization.

2131446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its digits is 576, while the sum is 21.

The square root of 2131446 is about 1459.9472593214. The cubic root of 2131446 is about 128.6939442407.

Adding to 2131446 its reverse (6441312), we get a palindrome (8572758).

The spelling of 2131446 in words is "two million, one hundred thirty-one thousand, four hundred forty-six".