23398378 has 8 divisors (see below), whose sum is σ = 35542080. Its totient is φ = 11551020.

The previous prime is 23398369. The next prime is 23398379. The reversal of 23398378 is 87389332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23398379) 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 in 3 ways as a sum of consecutive naturals, for example, 73888 + ... + 74203.

It is an arithmetic number, because the mean of its divisors is an integer number (4442760).

Almost surely, 2^23398378 is an apocalyptic number.

23398378 is a deficient number, since it is larger than the sum of its proper divisors (12143702).

23398378 is a wasteful number, since it uses less digits than its factorization.

23398378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148172.

The product of its digits is 217728, while the sum is 43.

The square root of 23398378 is about 4837.1869924575. The cubic root of 23398378 is about 286.0192417002.

The spelling of 23398378 in words is "twenty-three million, three hundred ninety-eight thousand, three hundred seventy-eight".