2143450 has 24 divisors (see below), whose sum is σ = 4026528. Its totient is φ = 848880.

The previous prime is 2143441. The next prime is 2143451. The reversal of 2143450 is 543412.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2143451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8019 + ... + 8281.

It is an arithmetic number, because the mean of its divisors is an integer number (167772).

2^2143450 is an apocalyptic number.

2143450 is a deficient number, since it is larger than the sum of its proper divisors (1883078).

2143450 is a wasteful number, since it uses less digits than its factorization.

2143450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2143450 is about 1464.0525946837. The cubic root of 2143450 is about 128.9350874265.

Adding to 2143450 its reverse (543412), we get a palindrome (2686862).

The spelling of 2143450 in words is "two million, one hundred forty-three thousand, four hundred fifty".