1422928 has 20 divisors (see below), whose sum is σ = 2969428. Its totient is φ = 656640.

The previous prime is 1422923. The next prime is 1422937. The reversal of 1422928 is 8292241.

It can be written as a sum of positive squares in 2 ways, for example, as 627264 + 795664 = 792^2 + 892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1422896 and 1422905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422923) 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, 3213 + ... + 3628.

2^1422928 is an apocalyptic number.

It is an amenable number.

1422928 is an abundant number, since it is smaller than the sum of its proper divisors (1546500).

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

1422928 is a wasteful number, since it uses less digits than its factorization.

1422928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862 (or 6856 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1422928 is about 1192.8654576271. The cubic root of 1422928 is about 112.4762880066.

The spelling of 1422928 in words is "one million, four hundred twenty-two thousand, nine hundred twenty-eight".