30235402 has 4 divisors (see below), whose sum is σ = 45353106. Its totient is φ = 15117700.

The previous prime is 30235399. The next prime is 30235417. The reversal of 30235402 is 20453203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29257281 + 978121 = 5409^2 + 989^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30235402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7558849 + ... + 7558852.

Almost surely, 2^30235402 is an apocalyptic number.

30235402 is a deficient number, since it is larger than the sum of its proper divisors (15117704).

30235402 is a wasteful number, since it uses less digits than its factorization.

30235402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15117703.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30235402 is about 5498.6727489459. The cubic root of 30235402 is about 311.5338549086.

Adding to 30235402 its reverse (20453203), we get a palindrome (50688605).

The spelling of 30235402 in words is "thirty million, two hundred thirty-five thousand, four hundred two".