1442457 has 12 divisors (see below), whose sum is σ = 2109744. Its totient is φ = 949560.

The previous prime is 1442453. The next prime is 1442459. The reversal of 1442457 is 7542441.

It is not a de Polignac number, because 1442457 - 2² = 1442453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442457.

It is not an unprimeable number, because it can be changed into a prime (1442453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (175812).

2^1442457 is an apocalyptic number.

It is an amenable number.

1442457 is a deficient number, since it is larger than the sum of its proper divisors (667287).

1442457 is a wasteful number, since it uses less digits than its factorization.

1442457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020 (or 2017 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 1442457 is about 1201.0233136788. The cubic root of 1442457 is about 112.9885126809.

Adding to 1442457 its reverse (7542441), we get a palindrome (8984898).

It can be divided in two parts, 144 and 2457, that added together give a square (2601 = 51²).

The spelling of 1442457 in words is "one million, four hundred forty-two thousand, four hundred fifty-seven".