28429622 has 32 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 12569760.

The previous prime is 28429619. The next prime is 28429649. The reversal of 28429622 is 22692482.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65747 + ... + 66177.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^28429622 is an apocalyptic number.

28429622 is a deficient number, since it is larger than the sum of its proper divisors (19470538).

28429622 is a wasteful number, since it uses less digits than its factorization.

28429622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 27648, while the sum is 35.

The square root of 28429622 is about 5331.9435480883. The cubic root of 28429622 is about 305.2040988120.

The spelling of 28429622 in words is "twenty-eight million, four hundred twenty-nine thousand, six hundred twenty-two".