2145028 has 12 divisors (see below), whose sum is σ = 3769920. Its totient is φ = 1067912.

The previous prime is 2145023. The next prime is 2145047. The reversal of 2145028 is 8205412.

It is a super-2 number, since 2×2145028² = 9202290241568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

2^2145028 is an apocalyptic number.

It is an amenable number.

2145028 is a deficient number, since it is larger than the sum of its proper divisors (1624892).

2145028 is a wasteful number, since it uses less digits than its factorization.

2145028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2304 counting only the distinct ones).

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

The square root of 2145028 is about 1464.5914105989. The cubic root of 2145028 is about 128.9667201774.

The spelling of 2145028 in words is "two million, one hundred forty-five thousand, twenty-eight".