9925740 has 120 divisors (see below), whose sum is σ = 34029072.
Its totient is φ = 2401920.
The previous prime is 9925717. The next prime is 9925757. The reversal of 9925740 is 475299.
9925740 is a nontrivial binomial coefficient, being equal to C(4456, 2).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 9925695 and 9925704.
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 39 ways as a sum of consecutive naturals, for example, 17542 + ... + 18098.
Almost surely, 29925740 is an apocalyptic number.
9925740 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
9925740 is the 4455-th triangular number and also the 2228-th hexagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 9925740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17014536).
9925740 is an abundant number, since it is smaller than the sum of its proper divisors (24103332).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9925740 is a wasteful number, since it uses less digits than its factorization.
9925740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 589 (or 578 counting only the distinct ones).
The product of its (nonzero) digits is 22680, while the sum is 36.
The square root of 9925740 is about 3150.5142437386.
The cubic root of 9925740 is about 214.9088490483.
The spelling of 9925740 in words is "nine million, nine hundred twenty-five thousand, seven hundred forty".