28902422 has 8 divisors (see below), whose sum is σ = 43421400. Its totient is φ = 14428624.

The previous prime is 28902413. The next prime is 28902449. The reversal of 28902422 is 22420982.

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

It is a super-3 number, since 3×28902422³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9647 + ... + 12282.

It is an arithmetic number, because the mean of its divisors is an integer number (5427675).

Almost surely, 2^28902422 is an apocalyptic number.

28902422 is a deficient number, since it is larger than the sum of its proper divisors (14518978).

28902422 is a wasteful number, since it uses less digits than its factorization.

28902422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22590.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 28902422 is about 5376.0972833460. The cubic root of 28902422 is about 306.8867085432.

The spelling of 28902422 in words is "twenty-eight million, nine hundred two thousand, four hundred twenty-two".