10253840 has 20 divisors (see below), whose sum is σ = 23840364. Its totient is φ = 4101504.

The previous prime is 10253833. The next prime is 10253843. The reversal of 10253840 is 4835201.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 2119936 = 2852^2 + 1456^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (10253843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64007 + ... + 64166.

Almost surely, 2^10253840 is an apocalyptic number.

10253840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10253840 is an abundant number, since it is smaller than the sum of its proper divisors (13586524).

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

10253840 is a wasteful number, since it uses less digits than its factorization.

10253840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128186 (or 128180 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 10253840 is about 3202.1617698049. The cubic root of 10253840 is about 217.2511974202.

The spelling of 10253840 in words is "ten million, two hundred fifty-three thousand, eight hundred forty".