28743572 has 48 divisors (see below), whose sum is σ = 61039104. Its totient is φ = 11664000.

The previous prime is 28743571. The next prime is 28743577. The reversal of 28743572 is 27534782.

Its product of digits (94080) is a multiple of the sum of its prime factors (1680).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28743571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16922 + ... + 18542.

It is an arithmetic number, because the mean of its divisors is an integer number (1271648).

Almost surely, 2^28743572 is an apocalyptic number.

28743572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28743572 is an abundant number, since it is smaller than the sum of its proper divisors (32295532).

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

28743572 is a wasteful number, since it uses less digits than its factorization.

28743572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1678 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 28743572 is about 5361.3031997827. The cubic root of 28743572 is about 306.3234508259.

It can be divided in two parts, 2874 and 3572, that added together give a palindrome (6446).

The spelling of 28743572 in words is "twenty-eight million, seven hundred forty-three thousand, five hundred seventy-two".