23781342 has 48 divisors (see below), whose sum is σ = 52704000. Its totient is φ = 7147296.

The previous prime is 23781341. The next prime is 23781349. The reversal of 23781342 is 24318732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23781341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47409 + ... + 47907.

It is an arithmetic number, because the mean of its divisors is an integer number (1098000).

Almost surely, 2^23781342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23781342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26352000).

23781342 is an abundant number, since it is smaller than the sum of its proper divisors (28922658).

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

23781342 is a wasteful number, since it uses less digits than its factorization.

23781342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 564 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 23781342 is about 4876.6117335708. The cubic root of 23781342 is about 287.5712418283.

The spelling of 23781342 in words is "twenty-three million, seven hundred eighty-one thousand, three hundred forty-two".