11172740 has 36 divisors (see below), whose sum is σ = 24936996. Its totient is φ = 4204032.

The previous prime is 11172739. The next prime is 11172767. The reversal of 11172740 is 4727111.

11172740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1085764 + 10086976 = 1042^2 + 3176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4814 + ... + 6746.

Almost surely, 2^11172740 is an apocalyptic number.

11172740 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 11172740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12468498).

11172740 is an abundant number, since it is smaller than the sum of its proper divisors (13764256).

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

11172740 is a wasteful number, since it uses less digits than its factorization.

11172740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 11172740 is about 3342.5648834391. The cubic root of 11172740 is about 223.5561203489.

Adding to 11172740 its reverse (4727111), we get a palindrome (15899851).

The spelling of 11172740 in words is "eleven million, one hundred seventy-two thousand, seven hundred forty".