2051428 has 24 divisors (see below), whose sum is σ = 3753792. Its totient is φ = 980064.

The previous prime is 2051419. The next prime is 2051429. The reversal of 2051428 is 8241502.

It is a junction number, because it is equal to n+sod(n) for n = 2051399 and 2051408.

It is not an unprimeable number, because it can be changed into a prime (2051429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12201 + ... + 12367.

It is an arithmetic number, because the mean of its divisors is an integer number (156408).

2^2051428 is an apocalyptic number.

It is an amenable number.

2051428 is a deficient number, since it is larger than the sum of its proper divisors (1702364).

2051428 is a wasteful number, since it uses less digits than its factorization.

2051428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2051428 is about 1432.2806987459. The cubic root of 2051428 is about 127.0628989689.

The spelling of 2051428 in words is "two million, fifty-one thousand, four hundred twenty-eight".