2258428 has 6 divisors (see below), whose sum is σ = 3952256. Its totient is φ = 1129212.

The previous prime is 2258419. The next prime is 2258429. The reversal of 2258428 is 8248522.

It is a self number, because there is not a number n which added to its sum of digits gives 2258428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258429) 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 as a sum of consecutive naturals, namely, 282300 + ... + 282307.

2^2258428 is an apocalyptic number.

It is an amenable number.

2258428 is a deficient number, since it is larger than the sum of its proper divisors (1693828).

2258428 is a wasteful number, since it uses less digits than its factorization.

2258428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564611 (or 564609 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 2258428 is about 1502.8067074644. The cubic root of 2258428 is about 131.2004777645.

The spelling of 2258428 in words is "two million, two hundred fifty-eight thousand, four hundred twenty-eight".