428611481 has 8 divisors (see below), whose sum is σ = 452337600. Its totient is φ = 405002160.

The previous prime is 428611427. The next prime is 428611483. The reversal of 428611481 is 184116824.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428611481 is a prime.

It is a super-2 number, since 2×428611481² = 367415603290026722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428611483) 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, 21605 + ... + 36386.

It is an arithmetic number, because the mean of its divisors is an integer number (56542200).

Almost surely, 2^428611481 is an apocalyptic number.

It is an amenable number.

428611481 is a deficient number, since it is larger than the sum of its proper divisors (23726119).

428611481 is a wasteful number, since it uses less digits than its factorization.

428611481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58399.

The product of its digits is 12288, while the sum is 35.

The square root of 428611481 is about 20702.9341157238. The cubic root of 428611481 is about 753.9709272844.

The spelling of 428611481 in words is "four hundred twenty-eight million, six hundred eleven thousand, four hundred eighty-one".