2028455 has 16 divisors (see below), whose sum is σ = 2860704. Its totient is φ = 1361280.

The previous prime is 2028443. The next prime is 2028461. The reversal of 2028455 is 5548202.

It is not a de Polignac number, because 2028455 - 2⁶ = 2028391 is a prime.

It is a super-2 number, since 2×2028455² = 8229259374050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704 + ... + 2133.

It is an arithmetic number, because the mean of its divisors is an integer number (178794).

2^2028455 is an apocalyptic number.

2028455 is a deficient number, since it is larger than the sum of its proper divisors (832249).

2028455 is a wasteful number, since it uses less digits than its factorization.

2028455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2028455 is about 1424.2383929666. The cubic root of 2028455 is about 126.5868110084.

The spelling of 2028455 in words is "two million, twenty-eight thousand, four hundred fifty-five".