2140433 has 8 divisors (see below), whose sum is σ = 2197800. Its totient is φ = 2083968.

The previous prime is 2140421. The next prime is 2140441. The reversal of 2140433 is 3340412.

It can be written as a sum of positive squares in 4 ways, for example, as 146689 + 1993744 = 383^2 + 1412^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2140433 - 2¹⁰ = 2139409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7823 + ... + 8091.

It is an arithmetic number, because the mean of its divisors is an integer number (274725).

2^2140433 is an apocalyptic number.

It is an amenable number.

2140433 is a deficient number, since it is larger than the sum of its proper divisors (57367).

2140433 is a wasteful number, since it uses less digits than its factorization.

2140433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2140433 is about 1463.0218727005. The cubic root of 2140433 is about 128.8745650892.

Adding to 2140433 its reverse (3340412), we get a palindrome (5480845).

The spelling of 2140433 in words is "two million, one hundred forty thousand, four hundred thirty-three".