1424891 has 8 divisors (see below), whose sum is σ = 1570800. Its totient is φ = 1284192.

The previous prime is 1424881. The next prime is 1424903. The reversal of 1424891 is 1984241.

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

It is a de Polignac number, because none of the positive numbers 2^k-1424891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (196350).

2^1424891 is an apocalyptic number.

1424891 is a deficient number, since it is larger than the sum of its proper divisors (145909).

1424891 is a wasteful number, since it uses less digits than its factorization.

1424891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605.

The product of its digits is 2304, while the sum is 29.

The square root of 1424891 is about 1193.6879826822. The cubic root of 1424891 is about 112.5279864529.

The spelling of 1424891 in words is "one million, four hundred twenty-four thousand, eight hundred ninety-one".