428015375 has 32 divisors (see below), whose sum is σ = 595408320. Its totient is φ = 305280000.

The previous prime is 428015339. The next prime is 428015377. The reversal of 428015375 is 573510824.

It is a happy number.

It is not a de Polignac number, because 428015375 - 2⁶ = 428015311 is a prime.

It is a super-2 number, since 2×428015375² = 366394322472781250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428015377) 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 31 ways as a sum of consecutive naturals, for example, 35075 + ... + 45675.

It is an arithmetic number, because the mean of its divisors is an integer number (18606510).

Almost surely, 2^428015375 is an apocalyptic number.

428015375 is a deficient number, since it is larger than the sum of its proper divisors (167392945).

428015375 is a wasteful number, since it uses less digits than its factorization.

428015375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652 (or 10642 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 428015375 is about 20688.5324515781. The cubic root of 428015375 is about 753.6212282091.

The spelling of 428015375 in words is "four hundred twenty-eight million, fifteen thousand, three hundred seventy-five".