428046365 has 4 divisors (see below), whose sum is σ = 513655644. Its totient is φ = 342437088.

The previous prime is 428046341. The next prime is 428046389. The reversal of 428046365 is 563640824.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (428046341) and next prime (428046389).

It can be written as a sum of positive squares in 2 ways, for example, as 179479609 + 248566756 = 13397^2 + 15766^2 .

It is a cyclic number.

It is not a de Polignac number, because 428046365 - 2²⁶ = 360937501 is a prime.

It is a Duffinian number.

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, 42804632 + ... + 42804641.

It is an arithmetic number, because the mean of its divisors is an integer number (128413911).

Almost surely, 2^428046365 is an apocalyptic number.

It is an amenable number.

428046365 is a deficient number, since it is larger than the sum of its proper divisors (85609279).

428046365 is an equidigital number, since it uses as much as digits as its factorization.

428046365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85609278.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 428046365 is about 20689.2814036641. The cubic root of 428046365 is about 753.6394161525.

The spelling of 428046365 in words is "four hundred twenty-eight million, forty-six thousand, three hundred sixty-five".