23144200340 has 24 divisors (see below), whose sum is σ = 50715987840. Its totient is φ = 8855172128.

The previous prime is 23144200307. The next prime is 23144200357. The reversal of 23144200340 is 4300244132.

It is a super-2 number, since 2×23144200340² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25156280 + ... + 25157199.

It is an arithmetic number, because the mean of its divisors is an integer number (2113166160).

Almost surely, 2^23144200340 is an apocalyptic number.

23144200340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23144200340 is an abundant number, since it is smaller than the sum of its proper divisors (27571787500).

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

23144200340 is a wasteful number, since it uses less digits than its factorization.

23144200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50313511 (or 50313509 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23144200340 its reverse (4300244132), we get a palindrome (27444444472).

The spelling of 23144200340 in words is "twenty-three billion, one hundred forty-four million, two hundred thousand, three hundred forty".