23878554 has 64 divisors (see below), whose sum is σ = 59996160. Its totient is φ = 6177600.

The previous prime is 23878553. The next prime is 23878583. The reversal of 23878554 is 45587832.

It is a super-2 number, since 2×23878554² = 1140370682261832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (23878553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17704 + ... + 19004.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^23878554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23878554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29998080).

23878554 is an abundant number, since it is smaller than the sum of its proper divisors (36117606).

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

23878554 is a wasteful number, since it uses less digits than its factorization.

23878554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355.

The product of its digits is 268800, while the sum is 42.

The square root of 23878554 is about 4886.5687348077. The cubic root of 23878554 is about 287.9625481778.

The spelling of 23878554 in words is "twenty-three million, eight hundred seventy-eight thousand, five hundred fifty-four".