10225840 has 80 divisors (see below), whose sum is σ = 25766208. Its totient is φ = 3760128.

The previous prime is 10225829. The next prime is 10225841. The reversal of 10225840 is 4852201.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (10225841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99229 + ... + 99331.

Almost surely, 2^10225840 is an apocalyptic number.

10225840 is a gapful number since it is divisible by the number (10) 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 10225840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12883104).

10225840 is an abundant number, since it is smaller than the sum of its proper divisors (15540368).

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

10225840 is a wasteful number, since it uses less digits than its factorization.

10225840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 10225840 is about 3197.7867346025. The cubic root of 10225840 is about 217.0532690054.

The spelling of 10225840 in words is "ten million, two hundred twenty-five thousand, eight hundred forty".