28464446 has 4 divisors (see below), whose sum is σ = 42696672. Its totient is φ = 14232222.

The previous prime is 28464439. The next prime is 28464463. The reversal of 28464446 is 64446482.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7116110 + ... + 7116113.

It is an arithmetic number, because the mean of its divisors is an integer number (10674168).

Almost surely, 2^28464446 is an apocalyptic number.

28464446 is a deficient number, since it is larger than the sum of its proper divisors (14232226).

28464446 is a wasteful number, since it uses less digits than its factorization.

28464446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14232225.

The product of its digits is 147456, while the sum is 38.

The square root of 28464446 is about 5335.2081496414. The cubic root of 28464446 is about 305.3286647880.

The spelling of 28464446 in words is "twenty-eight million, four hundred sixty-four thousand, four hundred forty-six".