434398028 has 6 divisors (see below), whose sum is σ = 760196556. Its totient is φ = 217199012.

The previous prime is 434398001. The next prime is 434398037. The reversal of 434398028 is 820893434.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54299750 + ... + 54299757.

It is an arithmetic number, because the mean of its divisors is an integer number (126699426).

Almost surely, 2^434398028 is an apocalyptic number.

It is an amenable number.

434398028 is a deficient number, since it is larger than the sum of its proper divisors (325798528).

434398028 is a wasteful number, since it uses less digits than its factorization.

434398028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108599511 (or 108599509 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 434398028 is about 20842.2174444084. The cubic root of 434398028 is about 757.3488117339.

The spelling of 434398028 in words is "four hundred thirty-four million, three hundred ninety-eight thousand, twenty-eight".