9320640420 has 384 divisors, whose sum is σ = 33814609920. Its totient is φ = 1865410560.

The previous prime is 9320640419. The next prime is 9320640421. The reversal of 9320640420 is 240460239.

It is an interprime number because it is at equal distance from previous prime (9320640419) and next prime (9320640421).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (9320640421) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8970261 + ... + 8971299.

It is an arithmetic number, because the mean of its divisors is an integer number (88058880).

Almost surely, 2^9320640420 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 9320640420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16907304960).

9320640420 is an abundant number, since it is smaller than the sum of its proper divisors (24493969500).

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

9320640420 is a wasteful number, since it uses less digits than its factorization.

9320640420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 9320640420 is about 96543.4638906229. The cubic root of 9320640420 is about 2104.4983256910.

The spelling of 9320640420 in words is "nine billion, three hundred twenty million, six hundred forty thousand, four hundred twenty".