302132240040 has 128 divisors (see below), whose sum is σ = 912035376000. Its totient is φ = 80068697088.

The previous prime is 302132240023. The next prime is 302132240063. The reversal of 302132240040 is 40042231203.

It is a junction number, because it is equal to n+sod(n) for n = 302132239989 and 302132240016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15296491 + ... + 15316229.

It is an arithmetic number, because the mean of its divisors is an integer number (7125276375).

Almost surely, 2^302132240040 is an apocalyptic number.

302132240040 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 302132240040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456017688000).

302132240040 is an abundant number, since it is smaller than the sum of its proper divisors (609903135960).

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

302132240040 is a wasteful number, since it uses less digits than its factorization.

302132240040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20539 (or 20535 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 302132240040 its reverse (40042231203), we get a palindrome (342174471243).

The spelling of 302132240040 in words is "three hundred two billion, one hundred thirty-two million, two hundred forty thousand, forty".