28576426 has 32 divisors (see below), whose sum is σ = 46403280. Its totient is φ = 13171200.

The previous prime is 28576411. The next prime is 28576441. The reversal of 28576426 is 62467582.

It is an interprime number because it is at equal distance from previous prime (28576411) and next prime (28576441).

It can be written as a sum of positive squares in 8 ways, for example, as 7425625 + 21150801 = 2725^2 + 4599^2 .

It is a super-2 number, since 2×28576426² = 1633224245866952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144960 + ... + 145156.

Almost surely, 2^28576426 is an apocalyptic number.

28576426 is a deficient number, since it is larger than the sum of its proper divisors (17826854).

28576426 is a wasteful number, since it uses less digits than its factorization.

28576426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its digits is 161280, while the sum is 40.

The square root of 28576426 is about 5345.6922844474. The cubic root of 28576426 is about 305.7285316471.

The spelling of 28576426 in words is "twenty-eight million, five hundred seventy-six thousand, four hundred twenty-six".