23273784 has 128 divisors (see below), whose sum is σ = 69984000. Its totient is φ = 7143552.

The previous prime is 23273779. The next prime is 23273791. The reversal of 23273784 is 48737232.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217459 + ... + 217565.

It is an arithmetic number, because the mean of its divisors is an integer number (546750).

Almost surely, 2^23273784 is an apocalyptic number.

23273784 is a gapful number since it is divisible by the number (24) 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 23273784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34992000).

23273784 is an abundant number, since it is smaller than the sum of its proper divisors (46710216).

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

23273784 is a wasteful number, since it uses less digits than its factorization.

23273784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 184 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 23273784 is about 4824.2910359969. The cubic root of 23273784 is about 285.5106633935.

The spelling of 23273784 in words is "twenty-three million, two hundred seventy-three thousand, seven hundred eighty-four".