493721550 has 108 divisors (see below), whose sum is σ = 1543099896. Its totient is φ = 112845600.

The previous prime is 493721489. The next prime is 493721567. The reversal of 493721550 is 55127394.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 10855 + ... + 33245.

It is an arithmetic number, because the mean of its divisors is an integer number (14287962).

Almost surely, 2^493721550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 493721550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771549948).

493721550 is an abundant number, since it is smaller than the sum of its proper divisors (1049378346).

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

493721550 is a wasteful number, since it uses less digits than its factorization.

493721550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22423 (or 22408 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 493721550 is about 22219.8458590513. The cubic root of 493721550 is about 790.3643835251.

The spelling of 493721550 in words is "four hundred ninety-three million, seven hundred twenty-one thousand, five hundred fifty".