34381428 has 24 divisors (see below), whose sum is σ = 80529120. Its totient is φ = 11416800.

The previous prime is 34381397. The next prime is 34381433. The reversal of 34381428 is 82418343.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2098 + ... + 8553.

It is an arithmetic number, because the mean of its divisors is an integer number (3355380).

Almost surely, 2^34381428 is an apocalyptic number.

It is an amenable number.

34381428 is an abundant number, since it is smaller than the sum of its proper divisors (46147692).

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

34381428 is a wasteful number, since it uses less digits than its factorization.

34381428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927 (or 10925 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 34381428 is about 5863.5678558366. The cubic root of 34381428 is about 325.1681276056.

The spelling of 34381428 in words is "thirty-four million, three hundred eighty-one thousand, four hundred twenty-eight".