28950426 has 32 divisors (see below), whose sum is σ = 65009280. Its totient is φ = 9548928.

The previous prime is 28950421. The next prime is 28950437. The reversal of 28950426 is 62405982.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28950421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2475 + ... + 8001.

It is an arithmetic number, because the mean of its divisors is an integer number (2031540).

Almost surely, 2^28950426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28950426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32504640).

28950426 is an abundant number, since it is smaller than the sum of its proper divisors (36058854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28950426 is a wasteful number, since it uses less digits than its factorization.

28950426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5629 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28950426 is about 5380.5600080289. The cubic root of 28950426 is about 307.0565171619.

The spelling of 28950426 in words is "twenty-eight million, nine hundred fifty thousand, four hundred twenty-six".