11611428 has 24 divisors (see below), whose sum is σ = 27336288. Its totient is φ = 3835776.

The previous prime is 11611427. The next prime is 11611429. The reversal of 11611428 is 82411611.

It is an interprime number because it is at equal distance from previous prime (11611427) and next prime (11611429).

It is a junction number, because it is equal to n+sod(n) for n = 11611398 and 11611407.

It is not an unprimeable number, because it can be changed into a prime (11611427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926 + ... + 5637.

It is an arithmetic number, because the mean of its divisors is an integer number (1139012).

Almost surely, 2^11611428 is an apocalyptic number.

It is an amenable number.

11611428 is an abundant number, since it is smaller than the sum of its proper divisors (15724860).

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

11611428 is a wasteful number, since it uses less digits than its factorization.

11611428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683 (or 8681 counting only the distinct ones).

The product of its digits is 384, while the sum is 24.

The square root of 11611428 is about 3407.5545483528. The cubic root of 11611428 is about 226.4445526990. Note that the first 3 decimals are identical.

The spelling of 11611428 in words is "eleven million, six hundred eleven thousand, four hundred twenty-eight".