1442259 has 32 divisors (see below), whose sum is σ = 2634240. Its totient is φ = 759456.

The previous prime is 1442251. The next prime is 1442267. The reversal of 1442259 is 9522441.

It is an interprime number because it is at equal distance from previous prime (1442251) and next prime (1442267).

It is not a de Polignac number, because 1442259 - 2³ = 1442251 is a prime.

It is a super-3 number, since 3×1442259³ = 9000176532113339937, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

1442259 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2164 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (82320).

2^1442259 is an apocalyptic number.

1442259 is a deficient number, since it is larger than the sum of its proper divisors (1191981).

1442259 is a wasteful number, since it uses less digits than its factorization.

1442259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 610 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1442259 is about 1200.9408811428. The cubic root of 1442259 is about 112.9833426252.

The spelling of 1442259 in words is "one million, four hundred forty-two thousand, two hundred fifty-nine".