10321840 has 20 divisors (see below), whose sum is σ = 23998464. Its totient is φ = 4128704.

The previous prime is 10321823. The next prime is 10321841. The reversal of 10321840 is 4812301.

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 (10321841) 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, 64432 + ... + 64591.

Almost surely, 2^10321840 is an apocalyptic number.

10321840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321840 is an abundant number, since it is smaller than the sum of its proper divisors (13676624).

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

10321840 is a wasteful number, since it uses less digits than its factorization.

10321840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129036 (or 129030 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 10321840 is about 3212.7620515687. The cubic root of 10321840 is about 217.7303852014.

The spelling of 10321840 in words is "ten million, three hundred twenty-one thousand, eight hundred forty".