428008355 has 8 divisors (see below), whose sum is σ = 514552272. Its totient is φ = 341778528.

The previous prime is 428008331. The next prime is 428008379. The reversal of 428008355 is 553800824.

It is an interprime number because it is at equal distance from previous prime (428008331) and next prime (428008379).

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

It is a cyclic number.

It is not a de Polignac number, because 428008355 - 2⁶ = 428008291 is a prime.

It is a Duffinian number.

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, 75512 + ... + 80981.

It is an arithmetic number, because the mean of its divisors is an integer number (64319034).

Almost surely, 2^428008355 is an apocalyptic number.

428008355 is a deficient number, since it is larger than the sum of its proper divisors (86543917).

428008355 is a wasteful number, since it uses less digits than its factorization.

428008355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157045.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 428008355 is about 20688.3627916759. The cubic root of 428008355 is about 753.6171080690.

The spelling of 428008355 in words is "four hundred twenty-eight million, eight thousand, three hundred fifty-five".