428622912 has 42 divisors (see below), whose sum is σ = 1228571838. Its totient is φ = 142874112.

The previous prime is 428622907. The next prime is 428622959. The reversal of 428622912 is 219226824.

428622912 is a `hidden beast` number, since 4 + 28 + 622 + 9 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 301925376 + 126697536 = 17376^2 + 11256^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 371493 + ... + 372644.

Almost surely, 2^428622912 is an apocalyptic number.

It is an amenable number.

428622912 is an abundant number, since it is smaller than the sum of its proper divisors (799948926).

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

428622912 is a wasteful number, since it uses less digits than its factorization.

428622912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744155 (or 744142 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 428622912 is about 20703.2101858625. The cubic root of 428622912 is about 753.9776299864.

The spelling of 428622912 in words is "four hundred twenty-eight million, six hundred twenty-two thousand, nine hundred twelve".