30102402 has 32 divisors (see below), whose sum is σ = 66763584. Its totient is φ = 8971200.

The previous prime is 30102383. The next prime is 30102407. The reversal of 30102402 is 20420103.

It is not an unprimeable number, because it can be changed into a prime (30102407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288 + ... + 7764.

It is an arithmetic number, because the mean of its divisors is an integer number (2086362).

Almost surely, 2^30102402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30102402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33381792).

30102402 is an abundant number, since it is smaller than the sum of its proper divisors (36661182).

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

30102402 is a wasteful number, since it uses less digits than its factorization.

30102402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554.

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

The square root of 30102402 is about 5486.5655924267. The cubic root of 30102402 is about 311.0763900121.

Adding to 30102402 its reverse (20420103), we get a palindrome (50522505).

The spelling of 30102402 in words is "thirty million, one hundred two thousand, four hundred two".