428880455 has 8 divisors (see below), whose sum is σ = 515611104. Its totient is φ = 342468000.

The previous prime is 428880433. The next prime is 428880497. The reversal of 428880455 is 554088824.

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

It is not a de Polignac number, because 428880455 - 2²⁰ = 427831879 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 7 ways as a sum of consecutive naturals, for example, 76571 + ... + 81980.

It is an arithmetic number, because the mean of its divisors is an integer number (64451388).

Almost surely, 2^428880455 is an apocalyptic number.

428880455 is a deficient number, since it is larger than the sum of its proper divisors (86730649).

428880455 is a wasteful number, since it uses less digits than its factorization.

428880455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159097.

The product of its (nonzero) digits is 409600, while the sum is 44.

The square root of 428880455 is about 20709.4291326439. The cubic root of 428880455 is about 754.1286117905.

The spelling of 428880455 in words is "four hundred twenty-eight million, eight hundred eighty thousand, four hundred fifty-five".