9545940 has 72 divisors (see below), whose sum is σ = 29215368. Its totient is φ = 2522880.

The previous prime is 9545933. The next prime is 9545941. The reversal of 9545940 is 495459.

It can be written as a sum of positive squares in 4 ways, for example, as 617796 + 8928144 = 786^2 + 2988^2 .

It is a super-2 number, since 2×9545940² = 182249940967200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 9545895 and 9545904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9545941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32434 + ... + 32726.

It is an arithmetic number, because the mean of its divisors is an integer number (405769).

Almost surely, 2^9545940 is an apocalyptic number.

9545940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9545940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14607684).

9545940 is an abundant number, since it is smaller than the sum of its proper divisors (19669428).

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

9545940 is a wasteful number, since it uses less digits than its factorization.

9545940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 9545940 is about 3089.6504656676. The cubic root of 9545940 is about 212.1320229040.

The spelling of 9545940 in words is "nine million, five hundred forty-five thousand, nine hundred forty".