10819640 has 32 divisors (see below), whose sum is σ = 26218080. Its totient is φ = 3994752.

The previous prime is 10819583. The next prime is 10819643. The reversal of 10819640 is 4691801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10819643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9884 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (819315).

Almost surely, 2^10819640 is an apocalyptic number.

10819640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10819640 is an abundant number, since it is smaller than the sum of its proper divisors (15398440).

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

10819640 is a wasteful number, since it uses less digits than its factorization.

10819640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20831 (or 20827 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10819640 is about 3289.3221186135. The cubic root of 10819640 is about 221.1757983696.

The spelling of 10819640 in words is "ten million, eight hundred nineteen thousand, six hundred forty".