20943468 has 96 divisors (see below), whose sum is σ = 66859520. Its totient is φ = 5520960.

The previous prime is 20943467. The next prime is 20943469. The reversal of 20943468 is 86434902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20943467) and next prime (20943469).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20943467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8763 + ... + 10893.

Almost surely, 2^20943468 is an apocalyptic number.

20943468 is a gapful number since it is divisible by the number (28) 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 20943468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33429760).

20943468 is an abundant number, since it is smaller than the sum of its proper divisors (45916052).

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

20943468 is a wasteful number, since it uses less digits than its factorization.

20943468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 20943468 is about 4576.4033913107. The cubic root of 20943468 is about 275.6446276920.

The spelling of 20943468 in words is "twenty million, nine hundred forty-three thousand, four hundred sixty-eight".