493286136 has 128 divisors (see below), whose sum is σ = 1485312000. Its totient is φ = 136321920.

The previous prime is 493286117. The next prime is 493286137. The reversal of 493286136 is 631682394.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493286137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254226 + ... + 256158.

It is an arithmetic number, because the mean of its divisors is an integer number (11604000).

Almost surely, 2^493286136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 493286136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742656000).

493286136 is an abundant number, since it is smaller than the sum of its proper divisors (992025864).

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

493286136 is a wasteful number, since it uses less digits than its factorization.

493286136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1976 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 493286136 is about 22210.0458351621. The cubic root of 493286136 is about 790.1319738926.

The spelling of 493286136 in words is "four hundred ninety-three million, two hundred eighty-six thousand, one hundred thirty-six".