493549380 has 36 divisors (see below), whose sum is σ = 1497100332. Its totient is φ = 131613120.

The previous prime is 493549379. The next prime is 493549391. The reversal of 493549380 is 83945394.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 381655296 + 111894084 = 19536^2 + 10578^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1370791 + ... + 1371150.

Almost surely, 2^493549380 is an apocalyptic number.

It is an amenable number.

493549380 is an abundant number, since it is smaller than the sum of its proper divisors (1003550952).

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

493549380 is a wasteful number, since it uses less digits than its factorization.

493549380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741956 (or 2741951 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 493549380 is about 22215.9712819404. The cubic root of 493549380 is about 790.2725011969.

The spelling of 493549380 in words is "four hundred ninety-three million, five hundred forty-nine thousand, three hundred eighty".