23573340 has 144 divisors (see below), whose sum is σ = 83498688. Its totient is φ = 5271552.

The previous prime is 23573327. The next prime is 23573351. The reversal of 23573340 is 4337532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66604 + ... + 66956.

It is an arithmetic number, because the mean of its divisors is an integer number (579852).

Almost surely, 2^23573340 is an apocalyptic number.

23573340 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 23573340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41749344).

23573340 is an abundant number, since it is smaller than the sum of its proper divisors (59925348).

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

23573340 is a wasteful number, since it uses less digits than its factorization.

23573340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 23573340 is about 4855.2384081526. The cubic root of 23573340 is about 286.7303776427.

The spelling of 23573340 in words is "twenty-three million, five hundred seventy-three thousand, three hundred forty".