34728940 has 48 divisors (see below), whose sum is σ = 76071744. Its totient is φ = 13305600.

The previous prime is 34728931. The next prime is 34728961. The reversal of 34728940 is 4982743.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 34728940.

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, 52210 + ... + 52870.

It is an arithmetic number, because the mean of its divisors is an integer number (1584828).

Almost surely, 2^34728940 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 34728940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38035872).

34728940 is an abundant number, since it is smaller than the sum of its proper divisors (41342804).

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

34728940 is a wasteful number, since it uses less digits than its factorization.

34728940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 34728940 is about 5893.1265046663. The cubic root of 34728940 is about 326.2600081094.

The spelling of 34728940 in words is "thirty-four million, seven hundred twenty-eight thousand, nine hundred forty".