428616244 has 24 divisors (see below), whose sum is σ = 858511808. Its totient is φ = 183418560.

The previous prime is 428616241. The next prime is 428616277. The reversal of 428616244 is 442616824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428616241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8272 + ... + 30424.

Almost surely, 2^428616244 is an apocalyptic number.

It is an amenable number.

428616244 is an abundant number, since it is smaller than the sum of its proper divisors (429895564).

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

428616244 is a wasteful number, since it uses less digits than its factorization.

428616244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22855 (or 22853 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 428616244 is about 20703.0491474082. The cubic root of 428616244 is about 753.9737201403.

The spelling of 428616244 in words is "four hundred twenty-eight million, six hundred sixteen thousand, two hundred forty-four".