1428461 has 8 divisors (see below), whose sum is σ = 1503360. Its totient is φ = 1354672.

The previous prime is 1428431. The next prime is 1428473. The reversal of 1428461 is 1648241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1428461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428431) 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, 3800 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (187920).

2^1428461 is an apocalyptic number.

It is an amenable number.

1428461 is a deficient number, since it is larger than the sum of its proper divisors (74899).

1428461 is a wasteful number, since it uses less digits than its factorization.

1428461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

The product of its digits is 1536, while the sum is 26.

The square root of 1428461 is about 1195.1824128559. The cubic root of 1428461 is about 112.6218860042.

The spelling of 1428461 in words is "one million, four hundred twenty-eight thousand, four hundred sixty-one".