28422902 has 8 divisors (see below), whose sum is σ = 42724800. Its totient is φ = 14181304.

The previous prime is 28422883. The next prime is 28422907. The reversal of 28422902 is 20922482.

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

It is a super-2 number, since 2×28422902² = 1615722716203208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13877 + ... + 15792.

It is an arithmetic number, because the mean of its divisors is an integer number (5340600).

Almost surely, 2^28422902 is an apocalyptic number.

28422902 is a deficient number, since it is larger than the sum of its proper divisors (14301898).

28422902 is a wasteful number, since it uses less digits than its factorization.

28422902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30150.

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

The square root of 28422902 is about 5331.3133466342. The cubic root of 28422902 is about 305.1800495631.

The spelling of 28422902 in words is "twenty-eight million, four hundred twenty-two thousand, nine hundred two".