20022030 has 96 divisors (see below), whose sum is σ = 60585408. Its totient is φ = 4492800.

The previous prime is 20022017. The next prime is 20022043. The reversal of 20022030 is 3022002.

It is an interprime number because it is at equal distance from previous prime (20022017) and next prime (20022043).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38170 + ... + 38690.

It is an arithmetic number, because the mean of its divisors is an integer number (631098).

Almost surely, 2^20022030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30292704).

20022030 is an abundant number, since it is smaller than the sum of its proper divisors (40563378).

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

20022030 is a wasteful number, since it uses less digits than its factorization.

20022030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 20022030 is about 4474.5983059935. The cubic root of 20022030 is about 271.5413894553.

Adding to 20022030 its reverse (3022002), we get a palindrome (23044032).

The spelling of 20022030 in words is "twenty million, twenty-two thousand, thirty".