428615105 has 8 divisors (see below), whose sum is σ = 514449600. Its totient is φ = 342817776.

The previous prime is 428615093. The next prime is 428615111. The reversal of 428615105 is 501516824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428615105 is a prime.

It is a super-2 number, since 2×428615105² = 367421816468322050, which contains 22 as substring.

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, 37676 + ... + 47714.

It is an arithmetic number, because the mean of its divisors is an integer number (64306200).

Almost surely, 2^428615105 is an apocalyptic number.

It is an amenable number.

428615105 is a deficient number, since it is larger than the sum of its proper divisors (85834495).

428615105 is a wasteful number, since it uses less digits than its factorization.

428615105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18583.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 428615105 is about 20703.0216393646. The cubic root of 428615105 is about 753.9730522726.

It can be divided in two parts, 4286 and 15105, that added together give a palindrome (19391).

The spelling of 428615105 in words is "four hundred twenty-eight million, six hundred fifteen thousand, one hundred five".