307702272132 has 144 divisors (see below), whose sum is σ = 834587208000. Its totient is φ = 95296186368.

The previous prime is 307702272043. The next prime is 307702272167. The reversal of 307702272132 is 231272207703.

307702272132 is a `hidden beast` number, since 307 + 70 + 2 + 272 + 13 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 17465344 + ... + 17482952.

It is an arithmetic number, because the mean of its divisors is an integer number (5795744500).

Almost surely, 2^307702272132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307702272132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417293604000).

307702272132 is an abundant number, since it is smaller than the sum of its proper divisors (526884935868).

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

307702272132 is a wasteful number, since it uses less digits than its factorization.

307702272132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18130 (or 18125 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

Adding to 307702272132 its reverse (231272207703), we get a palindrome (538974479835).

The spelling of 307702272132 in words is "three hundred seven billion, seven hundred two million, two hundred seventy-two thousand, one hundred thirty-two".