28151902 has 8 divisors (see below), whose sum is σ = 42306696. Its totient is φ = 14049672.

The previous prime is 28151899. The next prime is 28151941. The reversal of 28151902 is 20915182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11773 + ... + 13960.

It is an arithmetic number, because the mean of its divisors is an integer number (5288337).

Almost surely, 2^28151902 is an apocalyptic number.

28151902 is a deficient number, since it is larger than the sum of its proper divisors (14154794).

28151902 is a wasteful number, since it uses less digits than its factorization.

28151902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26282.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 28151902 is about 5305.8365975593. The cubic root of 28151902 is about 304.2070308935.

The spelling of 28151902 in words is "twenty-eight million, one hundred fifty-one thousand, nine hundred two".