428205514 has 16 divisors (see below), whose sum is σ = 719639136. Its totient is φ = 189378000.

The previous prime is 428205493. The next prime is 428205521. The reversal of 428205514 is 415502824.

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, 262212 + ... + 263839.

It is an arithmetic number, because the mean of its divisors is an integer number (44977446).

Almost surely, 2^428205514 is an apocalyptic number.

428205514 is a deficient number, since it is larger than the sum of its proper divisors (291433622).

428205514 is a wasteful number, since it uses less digits than its factorization.

428205514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526101.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 428205514 is about 20693.1272165422. The cubic root of 428205514 is about 753.7328064232.

The spelling of 428205514 in words is "four hundred twenty-eight million, two hundred five thousand, five hundred fourteen".