2168528 has 10 divisors (see below), whose sum is σ = 4201554. Its totient is φ = 1084256.

The previous prime is 2168521. The next prime is 2168549. The reversal of 2168528 is 8258612.

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 71824 = 1448^2 + 268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2168494 and 2168503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67751 + ... + 67782.

2^2168528 is an apocalyptic number.

It is an amenable number.

2168528 is a deficient number, since it is larger than the sum of its proper divisors (2033026).

2168528 is a wasteful number, since it uses less digits than its factorization.

2168528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135541 (or 135535 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 2168528 is about 1472.5922721514. The cubic root of 2168528 is about 129.4359785513.

The spelling of 2168528 in words is "two million, one hundred sixty-eight thousand, five hundred twenty-eight".