28950445 has 16 divisors (see below), whose sum is σ = 36443520. Its totient is φ = 22035904.

The previous prime is 28950437. The next prime is 28950461. The reversal of 28950445 is 54405982.

It is a cyclic number.

It is not a de Polignac number, because 28950445 - 2³ = 28950437 is a prime.

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, 25551 + ... + 26659.

It is an arithmetic number, because the mean of its divisors is an integer number (2277720).

Almost surely, 2^28950445 is an apocalyptic number.

It is an amenable number.

28950445 is a deficient number, since it is larger than the sum of its proper divisors (7493075).

28950445 is a wasteful number, since it uses less digits than its factorization.

28950445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28950445 is about 5380.5617736441. The cubic root of 28950445 is about 307.0565843350.

The spelling of 28950445 in words is "twenty-eight million, nine hundred fifty thousand, four hundred forty-five".