1428493 has 8 divisors (see below), whose sum is σ = 1650240. Its totient is φ = 1222080.

The previous prime is 1428491. The next prime is 1428521. The reversal of 1428493 is 3948241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428493 - 2¹ = 1428491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428491) 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, 3633 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (206280).

2^1428493 is an apocalyptic number.

It is an amenable number.

1428493 is a deficient number, since it is larger than the sum of its proper divisors (221747).

1428493 is a wasteful number, since it uses less digits than its factorization.

1428493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7667.

The product of its digits is 6912, while the sum is 31.

The square root of 1428493 is about 1195.1957998588. The cubic root of 1428493 is about 112.6227269730.

The spelling of 1428493 in words is "one million, four hundred twenty-eight thousand, four hundred ninety-three".