34431428 has 12 divisors (see below), whose sum is σ = 60297132. Its totient is φ = 17203680.

The previous prime is 34431403. The next prime is 34431451. The reversal of 34431428 is 82413443.

It can be written as a sum of positive squares in 2 ways, for example, as 25080064 + 9351364 = 5008^2 + 3058^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 34431428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7526 + ... + 11202.

It is an arithmetic number, because the mean of its divisors is an integer number (5024761).

Almost surely, 2^34431428 is an apocalyptic number.

It is an amenable number.

34431428 is a deficient number, since it is larger than the sum of its proper divisors (25865704).

34431428 is a wasteful number, since it uses less digits than its factorization.

34431428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022 (or 6020 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 34431428 is about 5867.8299225523. The cubic root of 34431428 is about 325.3256790541.

The spelling of 34431428 in words is "thirty-four million, four hundred thirty-one thousand, four hundred twenty-eight".