1420239 has 8 divisors (see below), whose sum is σ = 1900080. Its totient is φ = 943616.

The previous prime is 1420207. The next prime is 1420253. The reversal of 1420239 is 9320241.

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 1420239 - 2⁵ = 1420207 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420259) 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, 559 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (237510).

2^1420239 is an apocalyptic number.

1420239 is a deficient number, since it is larger than the sum of its proper divisors (479841).

1420239 is a wasteful number, since it uses less digits than its factorization.

1420239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1420239 is about 1191.7378067344. The cubic root of 1420239 is about 112.4053920658.

It can be divided in two parts, 14202 and 39, that multiplied together give a triangular number (553878 = T₁₀₅₂).

The spelling of 1420239 in words is "one million, four hundred twenty thousand, two hundred thirty-nine".