1456442 has 24 divisors (see below), whose sum is σ = 2459520. Its totient is φ = 645840.

The previous prime is 1456439. The next prime is 1456451. The reversal of 1456442 is 2446541.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10409 + ... + 10547.

It is an arithmetic number, because the mean of its divisors is an integer number (102480).

2^1456442 is an apocalyptic number.

1456442 is a deficient number, since it is larger than the sum of its proper divisors (1003078).

1456442 is a wasteful number, since it uses less digits than its factorization.

1456442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 185 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 1456442 is about 1206.8313883886. The cubic root of 1456442 is about 113.3524900336.

Subtracting 1456442 from its reverse (2446541), we obtain a palindrome (990099).

The spelling of 1456442 in words is "one million, four hundred fifty-six thousand, four hundred forty-two".