492780 has 48 divisors (see below), whose sum is σ = 1419264. Its totient is φ = 127680.

The previous prime is 492769. The next prime is 492781. The reversal of 492780 is 87294.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 492780.

It is not an unprimeable number, because it can be changed into a prime (492781) by changing a digit.

492780 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2485 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (29568).

2⁴⁹²⁷⁸⁰ 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 492780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709632).

492780 is an abundant number, since it is smaller than the sum of its proper divisors (926484).

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

492780 is a wasteful number, since it uses less digits than its factorization.

492780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 492780 is about 701.9829057748. The cubic root of 492780 is about 78.9861643238.

The spelling of 492780 in words is "four hundred ninety-two thousand, seven hundred eighty".