23049428 has 12 divisors (see below), whose sum is σ = 40631892. Its totient is φ = 11440320.

The previous prime is 23049379. The next prime is 23049437. The reversal of 23049428 is 82494032.

It can be written as a sum of positive squares in 2 ways, for example, as 19909444 + 3139984 = 4462^2 + 1772^2 .

It is a super-2 number, since 2×23049428² = 1062552262254368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23049394 and 23049403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20483 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (3385991).

Almost surely, 2^23049428 is an apocalyptic number.

It is an amenable number.

23049428 is a deficient number, since it is larger than the sum of its proper divisors (17582464).

23049428 is a wasteful number, since it uses less digits than its factorization.

23049428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42202 (or 42200 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 23049428 is about 4800.9819828864. The cubic root of 23049428 is about 284.5902720178.

The spelling of 23049428 in words is "twenty-three million, forty-nine thousand, four hundred twenty-eight".