23378838 has 16 divisors (see below), whose sum is σ = 53437440. Its totient is φ = 6679656.

The previous prime is 23378821. The next prime is 23378851. The reversal of 23378838 is 83887332.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 556639 = 23378838 / (2 + 3 + 3 + 7 + 8 + 8 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 23378838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278278 + ... + 278361.

It is an arithmetic number, because the mean of its divisors is an integer number (3339840).

Almost surely, 2^23378838 is an apocalyptic number.

23378838 is an abundant number, since it is smaller than the sum of its proper divisors (30058602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23378838 is a wasteful number, since it uses less digits than its factorization.

23378838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556651.

The product of its digits is 193536, while the sum is 42.

The square root of 23378838 is about 4835.1668016729. The cubic root of 23378838 is about 285.9396012447.

It can be divided in two parts, 2337 and 8838, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 23378838 in words is "twenty-three million, three hundred seventy-eight thousand, eight hundred thirty-eight".