1428434 has 8 divisors (see below), whose sum is σ = 2448768. Its totient is φ = 612180.

The previous prime is 1428431. The next prime is 1428473. The reversal of 1428434 is 4348241.

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

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 3 ways as a sum of consecutive naturals, for example, 51002 + ... + 51029.

It is an arithmetic number, because the mean of its divisors is an integer number (306096).

2^1428434 is an apocalyptic number.

1428434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1428434 is a deficient number, since it is larger than the sum of its proper divisors (1020334).

1428434 is a wasteful number, since it uses less digits than its factorization.

1428434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102040.

The product of its digits is 3072, while the sum is 26.

The square root of 1428434 is about 1195.1711174556. The cubic root of 1428434 is about 112.6211764270.

The spelling of 1428434 in words is "one million, four hundred twenty-eight thousand, four hundred thirty-four".