20240343504 has 50 divisors (see below), whose sum is σ = 58581430050. Its totient is φ = 6746780736.

The previous prime is 20240343481. The next prime is 20240343527. The reversal of 20240343504 is 40534304202.

20240343504 is a `hidden beast` number, since 202 + 403 + 4 + 3 + 50 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (20240343481) and next prime (20240343527).

It can be written as a sum of positive squares in only one way, i.e., 15650010000 + 4590333504 = 125100^2 + 67752^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7807479 + ... + 7810070.

It is an arithmetic number, because the mean of its divisors is an integer number (1171628601).

Almost surely, 2^20240343504 is an apocalyptic number.

20240343504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20240343504 is an abundant number, since it is smaller than the sum of its proper divisors (38341086546).

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

20240343504 is a wasteful number, since it uses less digits than its factorization.

20240343504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15617569 (or 15617554 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 20240343504 its reverse (40534304202), we get a palindrome (60774647706).

The spelling of 20240343504 in words is "twenty billion, two hundred forty million, three hundred forty-three thousand, five hundred four".