11439740 has 48 divisors (see below), whose sum is σ = 27010368. Its totient is φ = 4038144.

The previous prime is 11439731. The next prime is 11439749. The reversal of 11439740 is 4793411.

It is an interprime number because it is at equal distance from previous prime (11439731) and next prime (11439749).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11439749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5024 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (562716).

Almost surely, 2^11439740 is an apocalyptic number.

11439740 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 11439740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13505184).

11439740 is an abundant number, since it is smaller than the sum of its proper divisors (15570628).

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

11439740 is a wasteful number, since it uses less digits than its factorization.

11439740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958 (or 1956 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 11439740 is about 3382.2684695334. The cubic root of 11439740 is about 225.3229272492.

The spelling of 11439740 in words is "eleven million, four hundred thirty-nine thousand, seven hundred forty".