1426428 has 18 divisors (see below), whose sum is σ = 3605784. Its totient is φ = 475464.

The previous prime is 1426427. The next prime is 1426429. The reversal of 1426428 is 8246241.

1426428 is a `hidden beast` number, since 14 + 2 + 642 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1426427) and next prime (1426429).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19776 + ... + 19847.

2^1426428 is an apocalyptic number.

1426428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1426428 is an abundant number, since it is smaller than the sum of its proper divisors (2179356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1426428 is a wasteful number, since it uses less digits than its factorization.

1426428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39633 (or 39628 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1426428 is about 1194.3316122418. The cubic root of 1426428 is about 112.5684324390.

The spelling of 1426428 in words is "one million, four hundred twenty-six thousand, four hundred twenty-eight".