302040 has 48 divisors (see below), whose sum is σ = 982800. Its totient is φ = 80448.

The previous prime is 302009. The next prime is 302053. The reversal of 302040 is 40203.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

302040 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 11 ways as a sum of consecutive naturals, for example, 60 + ... + 779.

It is an arithmetic number, because the mean of its divisors is an integer number (20475).

2³⁰²⁰⁴⁰ is an apocalyptic number.

302040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491400).

302040 is an abundant number, since it is smaller than the sum of its proper divisors (680760).

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

302040 is a wasteful number, since it uses less digits than its factorization.

302040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 302040 is about 549.5816590826. The cubic root of 302040 is about 67.0946904973.

Adding to 302040 its reverse (40203), we get a palindrome (342243).

The spelling of 302040 in words is "three hundred two thousand, forty", and thus it is an iban number.