28910416 has 10 divisors (see below), whose sum is σ = 56013962. Its totient is φ = 14455200.

The previous prime is 28910393. The next prime is 28910429. The reversal of 28910416 is 61401982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14470416 + 14440000 = 3804^2 + 3800^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903435 + ... + 903466.

Almost surely, 2^28910416 is an apocalyptic number.

It is an amenable number.

28910416 is a deficient number, since it is larger than the sum of its proper divisors (27103546).

28910416 is a wasteful number, since it uses less digits than its factorization.

28910416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806909 (or 1806903 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 28910416 is about 5376.8407080738. The cubic root of 28910416 is about 306.9149994387.

The spelling of 28910416 in words is "twenty-eight million, nine hundred ten thousand, four hundred sixteen".