28534426 has 8 divisors (see below), whose sum is σ = 42954804. Its totient is φ = 14216160.

The previous prime is 28534423. The next prime is 28534501. The reversal of 28534426 is 62443582.

It can be written as a sum of positive squares in 2 ways, for example, as 27092025 + 1442401 = 5205^2 + 1201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28534391 and 28534400.

It is not an unprimeable number, because it can be changed into a prime (28534423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24825 + ... + 25948.

Almost surely, 2^28534426 is an apocalyptic number.

28534426 is a deficient number, since it is larger than the sum of its proper divisors (14420378).

28534426 is a wasteful number, since it uses less digits than its factorization.

28534426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51056.

The product of its digits is 46080, while the sum is 34.

The square root of 28534426 is about 5341.7624432391. The cubic root of 28534426 is about 305.5786774251.

The spelling of 28534426 in words is "twenty-eight million, five hundred thirty-four thousand, four hundred twenty-six".