428450265 has 12 divisors (see below), whose sum is σ = 742647204. Its totient is φ = 228506784.

The previous prime is 428450249. The next prime is 428450273. The reversal of 428450265 is 562054824.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 259242201 + 169208064 = 16101^2 + 13008^2 .

It is not a de Polignac number, because 428450265 - 2⁴ = 428450249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4760514 + ... + 4760603.

It is an arithmetic number, because the mean of its divisors is an integer number (61887267).

Almost surely, 2^428450265 is an apocalyptic number.

428450265 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

428450265 is a deficient number, since it is larger than the sum of its proper divisors (314196939).

428450265 is a wasteful number, since it uses less digits than its factorization.

428450265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521128 (or 9521125 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 428450265 is about 20699.0401951395. The cubic root of 428450265 is about 753.8763836821.

The spelling of 428450265 in words is "four hundred twenty-eight million, four hundred fifty thousand, two hundred sixty-five".