28601544 has 16 divisors (see below), whose sum is σ = 71503920. Its totient is φ = 9533840.

The previous prime is 28601539. The next prime is 28601557. The reversal of 28601544 is 44510682.

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, 595842 + ... + 595889.

It is an arithmetic number, because the mean of its divisors is an integer number (4468995).

Almost surely, 2^28601544 is an apocalyptic number.

28601544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28601544 is an abundant number, since it is smaller than the sum of its proper divisors (42902376).

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

28601544 is a wasteful number, since it uses less digits than its factorization.

28601544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191740 (or 1191736 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 28601544 is about 5348.0411367154. The cubic root of 28601544 is about 305.8180814551.

The spelling of 28601544 in words is "twenty-eight million, six hundred one thousand, five hundred forty-four".