4022730 has 64 divisors (see below), whose sum is σ = 10990080. Its totient is φ = 1046592.

The previous prime is 4022719. The next prime is 4022741. The reversal of 4022730 is 372204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4022719) and next prime (4022741).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12532 + ... + 12848.

It is an arithmetic number, because the mean of its divisors is an integer number (171720).

Almost surely, 2^4022730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4022730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5495040).

4022730 is an abundant number, since it is smaller than the sum of its proper divisors (6967350).

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

4022730 is a wasteful number, since it uses less digits than its factorization.

4022730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4022730 is about 2005.6744501539. The cubic root of 4022730 is about 159.0402176655.

Adding to 4022730 its reverse (372204), we get a palindrome (4394934).

The spelling of 4022730 in words is "four million, twenty-two thousand, seven hundred thirty".