302243040 has 144 divisors (see below), whose sum is σ = 1125227376. Its totient is φ = 73267200.

The previous prime is 302243027. The next prime is 302243099. The reversal of 302243040 is 40342203.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6300 + ... + 25380.

It is an arithmetic number, because the mean of its divisors is an integer number (7814079).

Almost surely, 2^302243040 is an apocalyptic number.

302243040 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 302243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562613688).

302243040 is an abundant number, since it is smaller than the sum of its proper divisors (822984336).

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

302243040 is a wasteful number, since it uses less digits than its factorization.

302243040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19113 (or 19102 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 302243040 is about 17385.1384808980. The cubic root of 302243040 is about 671.0972145842.

Adding to 302243040 its reverse (40342203), we get a palindrome (342585243).

It can be divided in two parts, 302 and 243040, that added together give a palindrome (243342).

The spelling of 302243040 in words is "three hundred two million, two hundred forty-three thousand, forty".