9459940 has 60 divisors (see below), whose sum is σ = 23293116. Its totient is φ = 3226944.

The previous prime is 9459937. The next prime is 9459943. The reversal of 9459940 is 499549.

It is an interprime number because it is at equal distance from previous prime (9459937) and next prime (9459943).

It can be written as a sum of positive squares in 2 ways, for example, as 7001316 + 2458624 = 2646^2 + 1568^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9459893 and 9459902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9459943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47922 + ... + 48118.

Almost surely, 2^9459940 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 9459940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11646558).

9459940 is an abundant number, since it is smaller than the sum of its proper divisors (13833176).

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

9459940 is a wasteful number, since it uses less digits than its factorization.

9459940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 9459940 is about 3075.7015459891. The cubic root of 9459940 is about 211.4930631291.

The spelling of 9459940 in words is "nine million, four hundred fifty-nine thousand, nine hundred forty".