23078842 has 4 divisors (see below), whose sum is σ = 34618266. Its totient is φ = 11539420.

The previous prime is 23078827. The next prime is 23078851. The reversal of 23078842 is 24887032.

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., 23049601 + 29241 = 4801^2 + 171^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23078798 and 23078807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5769709 + ... + 5769712.

Almost surely, 2^23078842 is an apocalyptic number.

23078842 is a deficient number, since it is larger than the sum of its proper divisors (11539424).

23078842 is a wasteful number, since it uses less digits than its factorization.

23078842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11539423.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 23078842 is about 4804.0443378470. The cubic root of 23078842 is about 284.7112783466.

The spelling of 23078842 in words is "twenty-three million, seventy-eight thousand, eight hundred forty-two".