23771340 has 48 divisors (see below), whose sum is σ = 73956960. Its totient is φ = 6338880.

The previous prime is 23771339. The next prime is 23771347. The reversal of 23771340 is 4317732.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23771347) by changing a digit.

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, 21471 + ... + 22550.

It is an arithmetic number, because the mean of its divisors is an integer number (1540770).

Almost surely, 2^23771340 is an apocalyptic number.

23771340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23771340 is an abundant number, since it is smaller than the sum of its proper divisors (50185620).

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

23771340 is a wasteful number, since it uses less digits than its factorization.

23771340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44039 (or 44031 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 23771340 is about 4875.5861186118. The cubic root of 23771340 is about 287.5309204299.

The spelling of 23771340 in words is "twenty-three million, seven hundred seventy-one thousand, three hundred forty".