34534728 has 64 divisors (see below), whose sum is σ = 96940800. Its totient is φ = 11390400.

The previous prime is 34534711. The next prime is 34534739. The reversal of 34534728 is 82743543.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 34534692 and 34534701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21025 + ... + 22607.

It is an arithmetic number, because the mean of its divisors is an integer number (1514700).

Almost surely, 2^34534728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34534728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48470400).

34534728 is an abundant number, since it is smaller than the sum of its proper divisors (62406072).

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

34534728 is a wasteful number, since it uses less digits than its factorization.

34534728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699 (or 1689 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 34534728 is about 5876.6255623444. The cubic root of 34534728 is about 325.6506979153.

The spelling of 34534728 in words is "thirty-four million, five hundred thirty-four thousand, seven hundred twenty-eight".