20838416 has 20 divisors (see below), whose sum is σ = 40473600. Its totient is φ = 10393632.

The previous prime is 20838401. The next prime is 20838431. The reversal of 20838416 is 61483802.

It is an interprime number because it is at equal distance from previous prime (20838401) and next prime (20838431).

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, 6305 + ... + 9023.

It is an arithmetic number, because the mean of its divisors is an integer number (2023680).

Almost surely, 2^20838416 is an apocalyptic number.

It is an amenable number.

20838416 is a deficient number, since it is larger than the sum of its proper divisors (19635184).

20838416 is a wasteful number, since it uses less digits than its factorization.

20838416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206 (or 3200 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20838416 is about 4564.9113901586. The cubic root of 20838416 is about 275.1829790491.

The spelling of 20838416 in words is "twenty million, eight hundred thirty-eight thousand, four hundred sixteen".