1422538 has 8 divisors (see below), whose sum is σ = 2297988. Its totient is φ = 656544.

The previous prime is 1422523. The next prime is 1422541. The reversal of 1422538 is 8352241.

It can be written as a sum of positive squares in 2 ways, for example, as 1315609 + 106929 = 1147^2 + 327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1422538² = 4047228722888, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 27331 + ... + 27382.

2^1422538 is an apocalyptic number.

1422538 is a deficient number, since it is larger than the sum of its proper divisors (875450).

1422538 is a wasteful number, since it uses less digits than its factorization.

1422538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54728.

The product of its digits is 1920, while the sum is 25.

The square root of 1422538 is about 1192.7019745100. The cubic root of 1422538 is about 112.4660111314.

Adding to 1422538 its reverse (8352241), we get a palindrome (9774779).

The spelling of 1422538 in words is "one million, four hundred twenty-two thousand, five hundred thirty-eight".