23030402 has 4 divisors (see below), whose sum is σ = 34545606. Its totient is φ = 11515200.

The previous prime is 23030389. The next prime is 23030407. The reversal of 23030402 is 20403032.

It is a Cunningham number, because it is equal to 4799²+1.

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., 23030401 + 1 = 4799^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (23030407) by changing a digit.

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, 5757599 + ... + 5757602.

Almost surely, 2^23030402 is an apocalyptic number.

23030402 is a deficient number, since it is larger than the sum of its proper divisors (11515204).

23030402 is a wasteful number, since it uses less digits than its factorization.

23030402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11515203.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23030402 is about 4799.0001041884. Note that the first 3 decimals coincide. The cubic root of 23030402 is about 284.5119460680.

Adding to 23030402 its reverse (20403032), we get a palindrome (43433434).

It can be divided in two parts, 23030 and 402, that added together give a palindrome (23432).

The spelling of 23030402 in words is "twenty-three million, thirty thousand, four hundred two".