11619428 has 6 divisors (see below), whose sum is σ = 20334006. Its totient is φ = 5809712.

The previous prime is 11619383. The next prime is 11619437. The reversal of 11619428 is 82491611.

It can be written as a sum of positive squares in only one way, i.e., 7963684 + 3655744 = 2822^2 + 1912^2 .

It is a super-2 number, since 2×11619428² = 270022214094368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11619394 and 11619403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452425 + ... + 1452432.

It is an arithmetic number, because the mean of its divisors is an integer number (3389001).

Almost surely, 2^11619428 is an apocalyptic number.

It is an amenable number.

11619428 is a deficient number, since it is larger than the sum of its proper divisors (8714578).

11619428 is a wasteful number, since it uses less digits than its factorization.

11619428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904861 (or 2904859 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 11619428 is about 3408.7282085845. The cubic root of 11619428 is about 226.4965457453.

The spelling of 11619428 in words is "eleven million, six hundred nineteen thousand, four hundred twenty-eight".