34523728 has 10 divisors (see below), whose sum is σ = 66889754. Its totient is φ = 17261856.

The previous prime is 34523689. The next prime is 34523737. The reversal of 34523728 is 82732543.

It can be written as a sum of positive squares in only one way, i.e., 31674384 + 2849344 = 5628^2 + 1688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34523693 and 34523702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078851 + ... + 1078882.

Almost surely, 2^34523728 is an apocalyptic number.

It is an amenable number.

34523728 is a deficient number, since it is larger than the sum of its proper divisors (32366026).

34523728 is a wasteful number, since it uses less digits than its factorization.

34523728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157741 (or 2157735 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 34523728 is about 5875.6895765518. The cubic root of 34523728 is about 325.6161188285.

The spelling of 34523728 in words is "thirty-four million, five hundred twenty-three thousand, seven hundred twenty-eight".