23578340 has 24 divisors (see below), whose sum is σ = 50144640. Its totient is φ = 9311328.

The previous prime is 23578333. The next prime is 23578369. The reversal of 23578340 is 4387532.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23578297 and 23578306.

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, 5882 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (2089360).

Almost surely, 2^23578340 is an apocalyptic number.

23578340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23578340 is an abundant number, since it is smaller than the sum of its proper divisors (26566300).

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

23578340 is a wasteful number, since it uses less digits than its factorization.

23578340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011 (or 15009 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 23578340 is about 4855.7532886258. The cubic root of 23578340 is about 286.7506484308.

The spelling of 23578340 in words is "twenty-three million, five hundred seventy-eight thousand, three hundred forty".