32749472 has 24 divisors (see below), whose sum is σ = 73686816. Its totient is φ = 14035392.

The previous prime is 32749469. The next prime is 32749481. The reversal of 32749472 is 27494723.

It is an alternating number because its digits alternate between odd and even.

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, 72878 + ... + 73325.

It is an arithmetic number, because the mean of its divisors is an integer number (3070284).

Almost surely, 2^32749472 is an apocalyptic number.

32749472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

32749472 is an abundant number, since it is smaller than the sum of its proper divisors (40937344).

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

32749472 is a wasteful number, since it uses less digits than its factorization.

32749472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146220 (or 146212 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 32749472 is about 5722.7154393697. The cubic root of 32749472 is about 319.9396761289.

The spelling of 32749472 in words is "thirty-two million, seven hundred forty-nine thousand, four hundred seventy-two".