28590744 has 192 divisors, whose sum is σ = 94867200. Its totient is φ = 7008768.

The previous prime is 28590733. The next prime is 28590769. The reversal of 28590744 is 44709582.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 539422 + ... + 539474.

It is an arithmetic number, because the mean of its divisors is an integer number (494100).

Almost surely, 2^28590744 is an apocalyptic number.

28590744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28590744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47433600).

28590744 is an abundant number, since it is smaller than the sum of its proper divisors (66276456).

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

28590744 is a wasteful number, since it uses less digits than its factorization.

28590744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28590744 is about 5347.0313258854. The cubic root of 28590744 is about 305.7795841036.

The spelling of 28590744 in words is "twenty-eight million, five hundred ninety thousand, seven hundred forty-four".