1424401 has 4 divisors (see below), whose sum is σ = 1553904. Its totient is φ = 1294900.

The previous prime is 1424399. The next prime is 1424407. The reversal of 1424401 is 1044241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1424401 - 2¹ = 1424399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1424407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64735 + ... + 64756.

It is an arithmetic number, because the mean of its divisors is an integer number (388476).

2^1424401 is an apocalyptic number.

1424401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1424401 is a deficient number, since it is larger than the sum of its proper divisors (129503).

1424401 is a wasteful number, since it uses less digits than its factorization.

1424401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129502.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1424401 is about 1193.4827187689. The cubic root of 1424401 is about 112.5150860427.

Adding to 1424401 its reverse (1044241), we get a palindrome (2468642).

The spelling of 1424401 in words is "one million, four hundred twenty-four thousand, four hundred one".