428272415 has 8 divisors (see below), whose sum is σ = 544158000. Its totient is φ = 322463872.

The previous prime is 428272393. The next prime is 428272417. The reversal of 428272415 is 514272824.

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 428272415 - 2¹⁶ = 428206879 is a prime.

It is a super-2 number, since 2×428272415² = 366834522899864450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428272417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2519165 + ... + 2519334.

It is an arithmetic number, because the mean of its divisors is an integer number (68019750).

Almost surely, 2^428272415 is an apocalyptic number.

428272415 is a deficient number, since it is larger than the sum of its proper divisors (115885585).

428272415 is a wasteful number, since it uses less digits than its factorization.

428272415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038521.

The product of its digits is 35840, while the sum is 35.

The square root of 428272415 is about 20694.7436563007. The cubic root of 428272415 is about 753.7720577102.

The spelling of 428272415 in words is "four hundred twenty-eight million, two hundred seventy-two thousand, four hundred fifteen".