28880046 has 24 divisors (see below), whose sum is σ = 67387320. Its totient is φ = 8886096.

The previous prime is 28880029. The next prime is 28880051. The reversal of 28880046 is 64008882.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61476 + ... + 61943.

It is an arithmetic number, because the mean of its divisors is an integer number (2807805).

Almost surely, 2^28880046 is an apocalyptic number.

28880046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28880046 is an abundant number, since it is smaller than the sum of its proper divisors (38507274).

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

28880046 is a wasteful number, since it uses less digits than its factorization.

28880046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123440 (or 123437 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28880046 is about 5374.0158168729. The cubic root of 28880046 is about 306.8074917697.

The spelling of 28880046 in words is "twenty-eight million, eight hundred eighty thousand, forty-six".