2028523465 has 8 divisors (see below), whose sum is σ = 2518167240. Its totient is φ = 1566859392.

The previous prime is 2028523459. The next prime is 2028523477. The reversal of 2028523465 is 5643258202.

It can be written as a sum of positive squares in 4 ways, for example, as 207965241 + 1820558224 = 14421^2 + 42668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2028523465 - 2¹⁵ = 2028490697 is a prime.

It is a super-2 number, since 2×2028523465² = 8229814896111212450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6994764 + ... + 6995053.

It is an arithmetic number, because the mean of its divisors is an integer number (314770905).

Almost surely, 2^2028523465 is an apocalyptic number.

It is an amenable number.

2028523465 is a deficient number, since it is larger than the sum of its proper divisors (489643775).

2028523465 is a wasteful number, since it uses less digits than its factorization.

2028523465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989851.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 2028523465 is about 45039.1325959992. The cubic root of 2028523465 is about 1265.8823519058.

The spelling of 2028523465 in words is "two billion, twenty-eight million, five hundred twenty-three thousand, four hundred sixty-five".