34743728 has 20 divisors (see below), whose sum is σ = 68959128. Its totient is φ = 16947840.

The previous prime is 34743727. The next prime is 34743749. The reversal of 34743728 is 82734743.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 34743691 and 34743700.

It is not an unprimeable number, because it can be changed into a prime (34743727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25826 + ... + 27137.

Almost surely, 2^34743728 is an apocalyptic number.

It is an amenable number.

34743728 is a deficient number, since it is larger than the sum of its proper divisors (34215400).

34743728 is a wasteful number, since it uses less digits than its factorization.

34743728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53012 (or 53006 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 34743728 is about 5894.3810531726. The cubic root of 34743728 is about 326.3063100154.

The spelling of 34743728 in words is "thirty-four million, seven hundred forty-three thousand, seven hundred twenty-eight".