28415634 has 16 divisors (see below), whose sum is σ = 61203072. Its totient is φ = 8743248.

The previous prime is 28415617. The next prime is 28415657. The reversal of 28415634 is 43651482.

It is a junction number, because it is equal to n+sod(n) for n = 28415595 and 28415604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182074 + ... + 182229.

It is an arithmetic number, because the mean of its divisors is an integer number (3825192).

Almost surely, 2^28415634 is an apocalyptic number.

28415634 is an abundant number, since it is smaller than the sum of its proper divisors (32787438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28415634 is a wasteful number, since it uses less digits than its factorization.

28415634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364321.

The product of its digits is 23040, while the sum is 33.

The square root of 28415634 is about 5330.6316698868. The cubic root of 28415634 is about 305.1540348880.

The spelling of 28415634 in words is "twenty-eight million, four hundred fifteen thousand, six hundred thirty-four".