428619372 has 24 divisors (see below), whose sum is σ = 1011351600. Its totient is φ = 141267456.

The previous prime is 428619343. The next prime is 428619379. The reversal of 428619372 is 273916824.

It is not an unprimeable number, because it can be changed into a prime (428619379) 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, 199597 + ... + 201732.

It is an arithmetic number, because the mean of its divisors is an integer number (42139650).

Almost surely, 2^428619372 is an apocalyptic number.

It is an amenable number.

428619372 is an abundant number, since it is smaller than the sum of its proper divisors (582732228).

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

428619372 is a wasteful number, since it uses less digits than its factorization.

428619372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401425 (or 401423 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 428619372 is about 20703.1246916981. The cubic root of 428619372 is about 753.9755542783.

The spelling of 428619372 in words is "four hundred twenty-eight million, six hundred nineteen thousand, three hundred seventy-two".