23427434 has 4 divisors (see below), whose sum is σ = 35141154. Its totient is φ = 11713716.

The previous prime is 23427427. The next prime is 23427449. The reversal of 23427434 is 43472432.

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., 14707225 + 8720209 = 3835^2 + 2953^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23427397 and 23427406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5856857 + ... + 5856860.

Almost surely, 2^23427434 is an apocalyptic number.

23427434 is a deficient number, since it is larger than the sum of its proper divisors (11713720).

23427434 is a wasteful number, since it uses less digits than its factorization.

23427434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11713719.

The product of its digits is 16128, while the sum is 29.

The square root of 23427434 is about 4840.1894591018. The cubic root of 23427434 is about 286.1375851946.

Adding to 23427434 its reverse (43472432), we get a palindrome (66899866).

The spelling of 23427434 in words is "twenty-three million, four hundred twenty-seven thousand, four hundred thirty-four".