2028465 has 12 divisors (see below), whose sum is σ = 3516084. Its totient is φ = 1081824.

The previous prime is 2028461. The next prime is 2028487. The reversal of 2028465 is 5648202.

It can be written as a sum of positive squares in 2 ways, for example, as 944784 + 1083681 = 972^2 + 1041^2 .

It is not a de Polignac number, because 2028465 - 2² = 2028461 is a prime.

It is a super-3 number, since 3×2028465³ = 25039393803880333875, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2028461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22494 + ... + 22583.

It is an arithmetic number, because the mean of its divisors is an integer number (293007).

2^2028465 is an apocalyptic number.

It is an amenable number.

2028465 is a deficient number, since it is larger than the sum of its proper divisors (1487619).

2028465 is a wasteful number, since it uses less digits than its factorization.

2028465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45088 (or 45085 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2028465 is about 1424.2419036105. The cubic root of 2028465 is about 126.5870190265.

The spelling of 2028465 in words is "two million, twenty-eight thousand, four hundred sixty-five".