30022620 has 48 divisors (see below), whose sum is σ = 84301728. Its totient is φ = 7983360.

The previous prime is 30022583. The next prime is 30022649. The reversal of 30022620 is 2622003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30022620.

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, 39282 + ... + 40038.

It is an arithmetic number, because the mean of its divisors is an integer number (1756286).

Almost surely, 2^30022620 is an apocalyptic number.

30022620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30022620 is an abundant number, since it is smaller than the sum of its proper divisors (54279108).

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

30022620 is a wasteful number, since it uses less digits than its factorization.

30022620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30022620 is about 5479.2901000038. The cubic root of 30022620 is about 310.8013260860.

Adding to 30022620 its reverse (2622003), we get a palindrome (32644623).

The spelling of 30022620 in words is "thirty million, twenty-two thousand, six hundred twenty".