10308720 has 40 divisors (see below), whose sum is σ = 31957776. Its totient is φ = 2748928.

The previous prime is 10308719. The next prime is 10308731. The reversal of 10308720 is 2780301.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21237 + ... + 21716.

Almost surely, 2^10308720 is an apocalyptic number.

10308720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10308720 is an abundant number, since it is smaller than the sum of its proper divisors (21649056).

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

10308720 is a wasteful number, since it uses less digits than its factorization.

10308720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42969 (or 42963 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 10308720 is about 3210.7195455225. The cubic root of 10308720 is about 217.6380943614.

The spelling of 10308720 in words is "ten million, three hundred eight thousand, seven hundred twenty".