491370 has 32 divisors (see below), whose sum is σ = 1287360. Its totient is φ = 119040.

The previous prime is 491357. The next prime is 491371. The reversal of 491370 is 73194.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 491370.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (40230).

2⁴⁹¹³⁷⁰ is an apocalyptic number.

491370 is an abundant number, since it is smaller than the sum of its proper divisors (795990).

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

491370 is a wasteful number, since it uses less digits than its factorization.

491370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 491370 is about 700.9778883817. The cubic root of 491370 is about 78.9107575277.

It can be divided in two parts, 491 and 370, that added together give a triangular number (861 = T₄₁).

The spelling of 491370 in words is "four hundred ninety-one thousand, three hundred seventy".