20383896 has 64 divisors (see below), whose sum is σ = 55641600. Its totient is φ = 6185088.

The previous prime is 20383877. The next prime is 20383907. The reversal of 20383896 is 69838302.

It is a super-2 number, since 2×20383896² = 831006432277632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 24235 + ... + 25061.

It is an arithmetic number, because the mean of its divisors is an integer number (869400).

Almost surely, 2^20383896 is an apocalyptic number.

20383896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20383896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27820800).

20383896 is an abundant number, since it is smaller than the sum of its proper divisors (35257704).

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

20383896 is a wasteful number, since it uses less digits than its factorization.

20383896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 20383896 is about 4514.8528215214. The cubic root of 20383896 is about 273.1675232051.

The spelling of 20383896 in words is "twenty million, three hundred eighty-three thousand, eight hundred ninety-six".