1428906 has 8 divisors (see below), whose sum is σ = 2857824. Its totient is φ = 476300.

The previous prime is 1428899. The next prime is 1428923. The reversal of 1428906 is 6098241.

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

1428906 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119070 + ... + 119081.

It is an arithmetic number, because the mean of its divisors is an integer number (357228).

2^1428906 is an apocalyptic number.

1428906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1428906 is a wasteful number, since it uses less digits than its factorization.

1428906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238156.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1428906 is about 1195.3685624108. The cubic root of 1428906 is about 112.6335795999.

It can be divided in two parts, 14 and 28906, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 1428906 in words is "one million, four hundred twenty-eight thousand, nine hundred six".