28526401 has 8 divisors (see below), whose sum is σ = 29635200. Its totient is φ = 27426000.

The previous prime is 28526363. The next prime is 28526411. The reversal of 28526401 is 10462582.

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

It is a cyclic number.

It is not a de Polignac number, because 28526401 - 2¹³ = 28518209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28526401.

It is not an unprimeable number, because it can be changed into a prime (28526411) 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, 5320 + ... + 9238.

It is an arithmetic number, because the mean of its divisors is an integer number (3704400).

Almost surely, 2^28526401 is an apocalyptic number.

It is an amenable number.

28526401 is a deficient number, since it is larger than the sum of its proper divisors (1108799).

28526401 is a wasteful number, since it uses less digits than its factorization.

28526401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28526401 is about 5341.0112338395. The cubic root of 28526401 is about 305.5500278351.

Adding to 28526401 its reverse (10462582), we get a palindrome (38988983).

The spelling of 28526401 in words is "twenty-eight million, five hundred twenty-six thousand, four hundred one".