20602816 has 28 divisors (see below), whose sum is σ = 44030392. Its totient is φ = 9508608.

The previous prime is 20602807. The next prime is 20602823. The reversal of 20602816 is 61820602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11550 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (1572514).

Almost surely, 2^20602816 is an apocalyptic number.

20602816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20602816 is an abundant number, since it is smaller than the sum of its proper divisors (23427576).

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

20602816 is a wasteful number, since it uses less digits than its factorization.

20602816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24788 (or 24778 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20602816 is about 4539.0324960282. The cubic root of 20602816 is about 274.1419691581.

The spelling of 20602816 in words is "twenty million, six hundred two thousand, eight hundred sixteen".