10721382 has 32 divisors (see below), whose sum is σ = 24605952. Its totient is φ = 3050784.

The previous prime is 10721371. The next prime is 10721383. The reversal of 10721382 is 28312701.

It is a super-3 number, since 3×10721382³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721383) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16353 + ... + 16995.

It is an arithmetic number, because the mean of its divisors is an integer number (768936).

Almost surely, 2^10721382 is an apocalyptic number.

10721382 is an abundant number, since it is smaller than the sum of its proper divisors (13884570).

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

10721382 is a wasteful number, since it uses less digits than its factorization.

10721382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 10721382 is about 3274.3521496626. The cubic root of 10721382 is about 220.5042291238.

The spelling of 10721382 in words is "ten million, seven hundred twenty-one thousand, three hundred eighty-two".