20214530 has 32 divisors (see below), whose sum is σ = 44032896. Its totient is φ = 6522624.

The previous prime is 20214529. The next prime is 20214541. The reversal of 20214530 is 3541202.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 20214499 and 20214508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7304 + ... + 9683.

It is an arithmetic number, because the mean of its divisors is an integer number (1376028).

Almost surely, 2^20214530 is an apocalyptic number.

20214530 is an abundant number, since it is smaller than the sum of its proper divisors (23818366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20214530 is a wasteful number, since it uses less digits than its factorization.

20214530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17018.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20214530 is about 4496.0571615583. The cubic root of 20214530 is about 272.4088520450.

Adding to 20214530 its reverse (3541202), we get a palindrome (23755732).

The spelling of 20214530 in words is "twenty million, two hundred fourteen thousand, five hundred thirty".