11731740 has 96 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 2880000.

The previous prime is 11731729. The next prime is 11731763. The reversal of 11731740 is 4713711.

It is a self number, because there is not a number n which added to its sum of digits gives 11731740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46615 + ... + 46865.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^11731740 is an apocalyptic number.

11731740 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 11731740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17781120).

11731740 is an abundant number, since it is smaller than the sum of its proper divisors (23830500).

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

11731740 is a wasteful number, since it uses less digits than its factorization.

11731740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 11731740 is about 3425.1627698549. The cubic root of 11731740 is about 227.2239698558.

The spelling of 11731740 in words is "eleven million, seven hundred thirty-one thousand, seven hundred forty".