2142446 has 4 divisors (see below), whose sum is σ = 3213672. Its totient is φ = 1071222.

The previous prime is 2142431. The next prime is 2142449. The reversal of 2142446 is 6442412.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535610 + ... + 535613.

It is an arithmetic number, because the mean of its divisors is an integer number (803418).

2^2142446 is an apocalyptic number.

2142446 is a deficient number, since it is larger than the sum of its proper divisors (1071226).

2142446 is a wasteful number, since it uses less digits than its factorization.

2142446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071225.

The product of its digits is 1536, while the sum is 23.

The square root of 2142446 is about 1463.7096706656. The cubic root of 2142446 is about 128.9149530567.

Adding to 2142446 its reverse (6442412), we get a palindrome (8584858).

The spelling of 2142446 in words is "two million, one hundred forty-two thousand, four hundred forty-six".