20413522 has 8 divisors (see below), whose sum is σ = 30666672. Its totient is φ = 10191300.

The previous prime is 20413511. The next prime is 20413537. The reversal of 20413522 is 22531402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20413522.

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, 6004 + ... + 8767.

It is an arithmetic number, because the mean of its divisors is an integer number (3833334).

Almost surely, 2^20413522 is an apocalyptic number.

20413522 is a deficient number, since it is larger than the sum of its proper divisors (10253150).

20413522 is a wasteful number, since it uses less digits than its factorization.

20413522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15464.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20413522 is about 4518.1325788427. The cubic root of 20413522 is about 273.2997999049.

Adding to 20413522 its reverse (22531402), we get a palindrome (42944924).

The spelling of 20413522 in words is "twenty million, four hundred thirteen thousand, five hundred twenty-two".