307032020 has 48 divisors (see below), whose sum is σ = 680218560. Its totient is φ = 116089344.

The previous prime is 307032013. The next prime is 307032049. The reversal of 307032020 is 20230703.

It is a super-2 number, since 2×307032020² = 188537322610560800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 307032020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313772 + ... + 314748.

It is an arithmetic number, because the mean of its divisors is an integer number (14171220).

Almost surely, 2^307032020 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 307032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340109280).

307032020 is an abundant number, since it is smaller than the sum of its proper divisors (373186540).

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

307032020 is a wasteful number, since it uses less digits than its factorization.

307032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 307032020 is about 17522.3291830738. The cubic root of 307032020 is about 674.6231238638.

Adding to 307032020 its reverse (20230703), we get a palindrome (327262723).

It can be divided in two parts, 30703 and 2020, that added together give a palindrome (32723).

The spelling of 307032020 in words is "three hundred seven million, thirty-two thousand, twenty".