428572446 has 8 divisors (see below), whose sum is σ = 857144904. Its totient is φ = 142857480.

The previous prime is 428572423. The next prime is 428572447. The reversal of 428572446 is 644275824.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

428572446 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 428572398 and 428572407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428572447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35714365 + ... + 35714376.

It is an arithmetic number, because the mean of its divisors is an integer number (107143113).

Almost surely, 2^428572446 is an apocalyptic number.

428572446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

428572446 is a wasteful number, since it uses less digits than its factorization.

428572446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71428746.

The product of its digits is 430080, while the sum is 42.

The square root of 428572446 is about 20701.9913534906. The cubic root of 428572446 is about 753.9480377524.

The spelling of 428572446 in words is "four hundred twenty-eight million, five hundred seventy-two thousand, four hundred forty-six".