20530376 has 16 divisors (see below), whose sum is σ = 39822300. Its totient is φ = 9911104.

The previous prime is 20530351. The next prime is 20530397. The reversal of 20530376 is 67303502.

It can be written as a sum of positive squares in 2 ways, for example, as 19589476 + 940900 = 4426^2 + 970^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44015 + ... + 44478.

Almost surely, 2^20530376 is an apocalyptic number.

It is an amenable number.

20530376 is a deficient number, since it is larger than the sum of its proper divisors (19291924).

20530376 is a wasteful number, since it uses less digits than its factorization.

20530376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88528 (or 88524 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 20530376 is about 4531.0457953987. The cubic root of 20530376 is about 273.8202952577.

Adding to 20530376 its reverse (67303502), we get a palindrome (87833878).

It can be divided in two parts, 205303 and 76, that added together give a cube (205379 = 59³).

The spelling of 20530376 in words is "twenty million, five hundred thirty thousand, three hundred seventy-six".