302404134420 has 144 divisors (see below), whose sum is σ = 921533388048. Its totient is φ = 80269056000.

The previous prime is 302404134379. The next prime is 302404134443. The reversal of 302404134420 is 24431404203.

It is a happy number.

302404134420 is a `hidden beast` number, since 3 + 0 + 240 + 413 + 4 + 4 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 30583713924 + 271820420496 = 174882^2 + 521364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43190920 + ... + 43197920.

It is an arithmetic number, because the mean of its divisors is an integer number (6399537417).

Almost surely, 2^302404134420 is an apocalyptic number.

302404134420 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 302404134420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460766694024).

302404134420 is an abundant number, since it is smaller than the sum of its proper divisors (619129253628).

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

302404134420 is a wasteful number, since it uses less digits than its factorization.

302404134420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090 (or 8085 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 302404134420 its reverse (24431404203), we get a palindrome (326835538623).

The spelling of 302404134420 in words is "three hundred two billion, four hundred four million, one hundred thirty-four thousand, four hundred twenty".