28734332 has 24 divisors (see below), whose sum is σ = 55014960. Its totient is φ = 13023360.

The previous prime is 28734323. The next prime is 28734347. The reversal of 28734332 is 23343782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19394 + ... + 20822.

It is an arithmetic number, because the mean of its divisors is an integer number (2292290).

Almost surely, 2^28734332 is an apocalyptic number.

28734332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28734332 is a deficient number, since it is larger than the sum of its proper divisors (26280628).

28734332 is a wasteful number, since it uses less digits than its factorization.

28734332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1899 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 28734332 is about 5360.4413997357. The cubic root of 28734332 is about 306.2906234047.

The spelling of 28734332 in words is "twenty-eight million, seven hundred thirty-four thousand, three hundred thirty-two".