200540493438 has 48 divisors (see below), whose sum is σ = 428883970944. Its totient is φ = 62497929600.

The previous prime is 200540493403. The next prime is 200540493443. The reversal of 200540493438 is 834394045002.

It is a self number, because there is not a number n which added to its sum of digits gives 200540493438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121120 + ... + 644787.

It is an arithmetic number, because the mean of its divisors is an integer number (8935082728).

Almost surely, 2^200540493438 is an apocalyptic number.

200540493438 is an abundant number, since it is smaller than the sum of its proper divisors (228343477506).

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

200540493438 is a wasteful number, since it uses less digits than its factorization.

200540493438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766097 (or 766080 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 200540493438 in words is "two hundred billion, five hundred forty million, four hundred ninety-three thousand, four hundred thirty-eight".