23147340 has 48 divisors (see below), whose sum is σ = 65070432. Its totient is φ = 6148096.

The previous prime is 23147323. The next prime is 23147363. The reversal of 23147340 is 4374132.

It is a self number, because there is not a number n which added to its sum of digits gives 23147340.

It is a congruent number.

It is an unprimeable number.

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, 18412 + ... + 19628.

It is an arithmetic number, because the mean of its divisors is an integer number (1355634).

Almost surely, 2^23147340 is an apocalyptic number.

23147340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23147340 is an abundant number, since it is smaller than the sum of its proper divisors (41923092).

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

23147340 is a wasteful number, since it uses less digits than its factorization.

23147340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 23147340 is about 4811.1682572947. The cubic root of 23147340 is about 284.9926744808.

The spelling of 23147340 in words is "twenty-three million, one hundred forty-seven thousand, three hundred forty".