428065762280 has 64 divisors (see below), whose sum is σ = 1037374808400. Its totient is φ = 158033940480.

The previous prime is 428065762279. The next prime is 428065762283. The reversal of 428065762280 is 82267560824.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 37043161156 + 391022601124 = 192466^2 + 625318^2 .

It is not an unprimeable number, because it can be changed into a prime (428065762283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4151186 + ... + 4253054.

Almost surely, 2^428065762280 is an apocalyptic number.

428065762280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428065762280 is an abundant number, since it is smaller than the sum of its proper divisors (609309046120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428065762280 is a wasteful number, since it uses less digits than its factorization.

428065762280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109974 (or 109970 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 428065762280 in words is "four hundred twenty-eight billion, sixty-five million, seven hundred sixty-two thousand, two hundred eighty".