2321428 has 6 divisors (see below), whose sum is σ = 4062506. Its totient is φ = 1160712.

The previous prime is 2321399. The next prime is 2321443. The reversal of 2321428 is 8241232.

2321428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 242064 = 1442^2 + 492^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2321399 and 2321408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290175 + ... + 290182.

2^2321428 is an apocalyptic number.

It is an amenable number.

2321428 is a deficient number, since it is larger than the sum of its proper divisors (1741078).

2321428 is a wasteful number, since it uses less digits than its factorization.

2321428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580361 (or 580359 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2321428 is about 1523.6233130272. The cubic root of 2321428 is about 132.4092745486.

The spelling of 2321428 in words is "two million, three hundred twenty-one thousand, four hundred twenty-eight".