23440350144534 has 128 divisors (see below), whose sum is σ = 51592152268800. Its totient is φ = 7066854305280.

The previous prime is 23440350144517. The next prime is 23440350144611. The reversal of 23440350144534 is 43544105304432.

It is a super-2 number, since 2×23440350144534² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3415463587 + ... + 3415470449.

It is an arithmetic number, because the mean of its divisors is an integer number (403063689600).

Almost surely, 2^{23440350144534} is an apocalyptic number.

23440350144534 is an abundant number, since it is smaller than the sum of its proper divisors (28151802124266).

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

23440350144534 is a wasteful number, since it uses less digits than its factorization.

23440350144534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210.

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 23440350144534 its reverse (43544105304432), we get a palindrome (66984455448966).

The spelling of 23440350144534 in words is "twenty-three trillion, four hundred forty billion, three hundred fifty million, one hundred forty-four thousand, five hundred thirty-four".