28751416 has 8 divisors (see below), whose sum is σ = 53908920. Its totient is φ = 14375704.

The previous prime is 28751399. The next prime is 28751417. The reversal of 28751416 is 61415782.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28751417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1796956 + ... + 1796971.

It is an arithmetic number, because the mean of its divisors is an integer number (6738615).

Almost surely, 2^28751416 is an apocalyptic number.

It is an amenable number.

28751416 is a deficient number, since it is larger than the sum of its proper divisors (25157504).

28751416 is a wasteful number, since it uses less digits than its factorization.

28751416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593933 (or 3593929 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 28751416 is about 5362.0346884368. The cubic root of 28751416 is about 306.3513130857.

The spelling of 28751416 in words is "twenty-eight million, seven hundred fifty-one thousand, four hundred sixteen".