28455832 has 8 divisors (see below), whose sum is σ = 53354700. Its totient is φ = 14227912.

The previous prime is 28455743. The next prime is 28455839. The reversal of 28455832 is 23855482.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 28455791 and 28455800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28455839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1778482 + ... + 1778497.

Almost surely, 2^28455832 is an apocalyptic number.

It is an amenable number.

28455832 is a deficient number, since it is larger than the sum of its proper divisors (24898868).

28455832 is a wasteful number, since it uses less digits than its factorization.

28455832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556985 (or 3556981 counting only the distinct ones).

The product of its digits is 76800, while the sum is 37.

The square root of 28455832 is about 5334.4008098380. The cubic root of 28455832 is about 305.2978618409.

The spelling of 28455832 in words is "twenty-eight million, four hundred fifty-five thousand, eight hundred thirty-two".