1420233 has 4 divisors (see below), whose sum is σ = 1893648. Its totient is φ = 946820.

The previous prime is 1420207. The next prime is 1420253. The reversal of 1420233 is 3320241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3320241 = 3 ⋅1106747.

It is a cyclic number.

It is not a de Polignac number, because 1420233 - 2⁵ = 1420201 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1420253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236703 + ... + 236708.

It is an arithmetic number, because the mean of its divisors is an integer number (473412).

2^1420233 is an apocalyptic number.

It is an amenable number.

1420233 is a deficient number, since it is larger than the sum of its proper divisors (473415).

1420233 is an equidigital number, since it uses as much as digits as its factorization.

1420233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473414.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1420233 is about 1191.7352893995. The cubic root of 1420233 is about 112.4052337748.

Adding to 1420233 its reverse (3320241), we get a palindrome (4740474).

It can be divided in two parts, 1420 and 233, that added together give a triangular number (1653 = T₅₇).

The spelling of 1420233 in words is "one million, four hundred twenty thousand, two hundred thirty-three".