1442331 has 24 divisors (see below), whose sum is σ = 2409264. Its totient is φ = 821760.

The previous prime is 1442327. The next prime is 1442333. The reversal of 1442331 is 1332441.

It is not a de Polignac number, because 1442331 - 2² = 1442327 is a prime.

It is a super-2 number, since 2×1442331² = 4160637427122, which contains 22 as substring.

1442331 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1442333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1255 + ... + 2111.

It is an arithmetic number, because the mean of its divisors is an integer number (100386).

2^1442331 is an apocalyptic number.

1442331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1442331 is a deficient number, since it is larger than the sum of its proper divisors (966933).

1442331 is a wasteful number, since it uses less digits than its factorization.

1442331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 888 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1442331 is about 1200.9708572651. The cubic root of 1442331 is about 112.9852227002.

Adding to 1442331 its reverse (1332441), we get a palindrome (2774772).

The spelling of 1442331 in words is "one million, four hundred forty-two thousand, three hundred thirty-one".