338743890500 has 24 divisors (see below), whose sum is σ = 739816657944. Its totient is φ = 135497556000.

The previous prime is 338743890487. The next prime is 338743890509. The reversal of 338743890500 is 5098347833.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289884676 + 338454005824 = 17026^2 + 581768^2 .

It is a super-2 number, since 2×338743890500² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (338743890509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338743391 + ... + 338744390.

It is an arithmetic number, because the mean of its divisors is an integer number (30825694081).

Almost surely, 2^338743890500 is an apocalyptic number.

It is an amenable number.

338743890500 is an abundant number, since it is smaller than the sum of its proper divisors (401072767444).

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

338743890500 is a wasteful number, since it uses less digits than its factorization.

338743890500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677487800 (or 677487788 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 338743890500 in words is "three hundred thirty-eight billion, seven hundred forty-three million, eight hundred ninety thousand, five hundred".