20118396 has 12 divisors (see below), whose sum is σ = 46942952. Its totient is φ = 6706128.

The previous prime is 20118389. The next prime is 20118401. The reversal of 20118396 is 69381102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20118396² = 809499715225632, which contains 22 as substring.

It is a congruent number.

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, 838255 + ... + 838278.

Almost surely, 2^20118396 is an apocalyptic number.

It is an amenable number.

20118396 is an abundant number, since it is smaller than the sum of its proper divisors (26824556).

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

20118396 is a wasteful number, since it uses less digits than its factorization.

20118396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676540 (or 1676538 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 20118396 is about 4485.3534977747. The cubic root of 20118396 is about 271.9763351672.

Adding to 20118396 its reverse (69381102), we get a palindrome (89499498).

The spelling of 20118396 in words is "twenty million, one hundred eighteen thousand, three hundred ninety-six".