428181601 has 8 divisors (see below), whose sum is σ = 454308480. Its totient is φ = 402159168.

The previous prime is 428181583. The next prime is 428181629. The reversal of 428181601 is 106181824.

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

It is a cyclic number.

It is not a de Polignac number, because 428181601 - 2⁵ = 428181569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428181661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17581 + ... + 34138.

It is an arithmetic number, because the mean of its divisors is an integer number (56788560).

Almost surely, 2^428181601 is an apocalyptic number.

It is an amenable number.

428181601 is a deficient number, since it is larger than the sum of its proper divisors (26126879).

428181601 is a wasteful number, since it uses less digits than its factorization.

428181601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52223.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 428181601 is about 20692.5494079391. The cubic root of 428181601 is about 753.7187755061.

The spelling of 428181601 in words is "four hundred twenty-eight million, one hundred eighty-one thousand, six hundred one".