34218428 has 6 divisors (see below), whose sum is σ = 59882256. Its totient is φ = 17109212.

The previous prime is 34218421. The next prime is 34218461. The reversal of 34218428 is 82481243.

It is a junction number, because it is equal to n+sod(n) for n = 34218394 and 34218403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34218421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4277300 + ... + 4277307.

It is an arithmetic number, because the mean of its divisors is an integer number (9980376).

Almost surely, 2^34218428 is an apocalyptic number.

It is an amenable number.

34218428 is a deficient number, since it is larger than the sum of its proper divisors (25663828).

34218428 is a wasteful number, since it uses less digits than its factorization.

34218428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8554611 (or 8554609 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 34218428 is about 5849.6519554585. The cubic root of 34218428 is about 324.6534467691.

The spelling of 34218428 in words is "thirty-four million, two hundred eighteen thousand, four hundred twenty-eight".