23078380 has 48 divisors (see below), whose sum is σ = 53625600. Its totient is φ = 8287488.

The previous prime is 23078371. The next prime is 23078383. The reversal of 23078380 is 8387032.

It is a super-2 number, since 2×23078380² = 1065223246848800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23078383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8421 + ... + 10819.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^23078380 is an apocalyptic number.

23078380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23078380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26812800).

23078380 is an abundant number, since it is smaller than the sum of its proper divisors (30547220).

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

23078380 is a wasteful number, since it uses less digits than its factorization.

23078380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 23078380 is about 4803.9962531209. The cubic root of 23078380 is about 284.7093785186.

The spelling of 23078380 in words is "twenty-three million, seventy-eight thousand, three hundred eighty".