9420972 has 48 divisors (see below), whose sum is σ = 24192000. Its totient is φ = 2829760.

The previous prime is 9420959. The next prime is 9420997. The reversal of 9420972 is 2790249.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19429 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

Almost surely, 2^9420972 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 9420972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12096000).

9420972 is an abundant number, since it is smaller than the sum of its proper divisors (14771028).

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

9420972 is a wasteful number, since it uses less digits than its factorization.

9420972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 9420972 is about 3069.3601939166. The cubic root of 9420972 is about 211.2022648116.

Adding to 9420972 its reverse (2790249), we get a palindrome (12211221).

The spelling of 9420972 in words is "nine million, four hundred twenty thousand, nine hundred seventy-two".