9940620 has 72 divisors (see below), whose sum is σ = 28972944. Its totient is φ = 2546432.

The previous prime is 9940613. The next prime is 9940643. The reversal of 9940620 is 260499.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50362 + ... + 50558.

It is an arithmetic number, because the mean of its divisors is an integer number (402402).

Almost surely, 2^9940620 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 9940620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14486472).

9940620 is an abundant number, since it is smaller than the sum of its proper divisors (19032324).

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

9940620 is a wasteful number, since it uses less digits than its factorization.

9940620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 9940620 is about 3152.8748785830. The cubic root of 9940620 is about 215.0161877121.

The spelling of 9940620 in words is "nine million, nine hundred forty thousand, six hundred twenty".