23387340 has 48 divisors (see below), whose sum is σ = 67747680. Its totient is φ = 6021120.

The previous prime is 23387321. The next prime is 23387383. The reversal of 23387340 is 4378332.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23387298 and 23387307.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4981 + ... + 8460.

It is an arithmetic number, because the mean of its divisors is an integer number (1411410).

Almost surely, 2^23387340 is an apocalyptic number.

23387340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23387340 is an abundant number, since it is smaller than the sum of its proper divisors (44360340).

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

23387340 is a wasteful number, since it uses less digits than its factorization.

23387340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13482 (or 13480 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 23387340 is about 4836.0459054893. The cubic root of 23387340 is about 285.9742588533.

The spelling of 23387340 in words is "twenty-three million, three hundred eighty-seven thousand, three hundred forty".