23141340 has 36 divisors (see below), whose sum is σ = 70195944. Its totient is φ = 6170976.

The previous prime is 23141323. The next prime is 23141347. The reversal of 23141340 is 4314132.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23141347) 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 11 ways as a sum of consecutive naturals, for example, 64102 + ... + 64461.

Almost surely, 2^23141340 is an apocalyptic number.

23141340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23141340 is an abundant number, since it is smaller than the sum of its proper divisors (47054604).

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

23141340 is a wasteful number, since it uses less digits than its factorization.

23141340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128578 (or 128573 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23141340 is about 4810.5446677066. The cubic root of 23141340 is about 284.9680481262.

Adding to 23141340 its reverse (4314132), we get a palindrome (27455472).

The spelling of 23141340 in words is "twenty-three million, one hundred forty-one thousand, three hundred forty".