10971240 has 128 divisors (see below), whose sum is σ = 38741760. Its totient is φ = 2433024.

The previous prime is 10971217. The next prime is 10971281. The reversal of 10971240 is 4217901.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10971240.

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 31 ways as a sum of consecutive naturals, for example, 30904 + ... + 31256.

It is an arithmetic number, because the mean of its divisors is an integer number (302670).

Almost surely, 2^10971240 is an apocalyptic number.

10971240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10971240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19370880).

10971240 is an abundant number, since it is smaller than the sum of its proper divisors (27770520).

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

10971240 is a wasteful number, since it uses less digits than its factorization.

10971240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 10971240 is about 3312.2862195167. The cubic root of 10971240 is about 222.2040166567.

It can be divided in two parts, 10971 and 240, that added together give a palindrome (11211).

The spelling of 10971240 in words is "ten million, nine hundred seventy-one thousand, two hundred forty".