30022402 has 4 divisors (see below), whose sum is σ = 45033606. Its totient is φ = 15011200.

The previous prime is 30022393. The next prime is 30022403. The reversal of 30022402 is 20422003.

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., 20169081 + 9853321 = 4491^2 + 3139^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30022403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505599 + ... + 7505602.

Almost surely, 2^30022402 is an apocalyptic number.

30022402 is a deficient number, since it is larger than the sum of its proper divisors (15011204).

30022402 is a wasteful number, since it uses less digits than its factorization.

30022402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011203.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 30022402 is about 5479.2702068797. The cubic root of 30022402 is about 310.8005738215.

Adding to 30022402 its reverse (20422003), we get a palindrome (50444405).

The spelling of 30022402 in words is "thirty million, twenty-two thousand, four hundred two".