1423427 has 16 divisors (see below), whose sum is σ = 1619712. Its totient is φ = 1244160.

The previous prime is 1423417. The next prime is 1423439. The reversal of 1423427 is 7243241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423427 is a prime.

It is a super-2 number, since 2×1423427² = 4052288848658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1423417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19463 + ... + 19535.

It is an arithmetic number, because the mean of its divisors is an integer number (101232).

2^1423427 is an apocalyptic number.

1423427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1423427 is a deficient number, since it is larger than the sum of its proper divisors (196285).

1423427 is a wasteful number, since it uses less digits than its factorization.

1423427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158.

The product of its digits is 1344, while the sum is 23.

The square root of 1423427 is about 1193.0745995117. The cubic root of 1423427 is about 112.4894343987.

Adding to 1423427 its reverse (7243241), we get a palindrome (8666668).

The spelling of 1423427 in words is "one million, four hundred twenty-three thousand, four hundred twenty-seven".