30105402 has 32 divisors (see below), whose sum is σ = 65816064. Its totient is φ = 9139200.

The previous prime is 30105401. The next prime is 30105403. The reversal of 30105402 is 20450103.

It is an interprime number because it is at equal distance from previous prime (30105401) and next prime (30105403).

It is not an unprimeable number, because it can be changed into a prime (30105401) 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, 1599 + ... + 7922.

It is an arithmetic number, because the mean of its divisors is an integer number (2056752).

Almost surely, 2^30105402 is an apocalyptic number.

30105402 is an abundant number, since it is smaller than the sum of its proper divisors (35710662).

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

30105402 is a wasteful number, since it uses less digits than its factorization.

30105402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30105402 is about 5486.8389806882. The cubic root of 30105402 is about 311.0867236080.

Adding to 30105402 its reverse (20450103), we get a palindrome (50555505).

The spelling of 30105402 in words is "thirty million, one hundred five thousand, four hundred two".