30422100 has 72 divisors (see below), whose sum is σ = 91869120. Its totient is φ = 7758080.

The previous prime is 30422099. The next prime is 30422101. The reversal of 30422100 is 122403.

It is an interprime number because it is at equal distance from previous prime (30422099) and next prime (30422101).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30422101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4696 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (1275960).

Almost surely, 2^30422100 is an apocalyptic number.

30422100 is a gapful number since it is divisible by the number (30) 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 30422100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45934560).

30422100 is an abundant number, since it is smaller than the sum of its proper divisors (61447020).

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

30422100 is a wasteful number, since it uses less digits than its factorization.

30422100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449 (or 4442 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30422100 is about 5515.6232648722. The cubic root of 30422100 is about 312.1737608695.

Adding to 30422100 its reverse (122403), we get a palindrome (30544503).

The spelling of 30422100 in words is "thirty million, four hundred twenty-two thousand, one hundred".