428531610 has 48 divisors (see below), whose sum is σ = 1113688224. Its totient is φ = 105483456.

The previous prime is 428531581. The next prime is 428531617. The reversal of 428531610 is 16135824.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (428531617) 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 23 ways as a sum of consecutive naturals, for example, 37192 + ... + 47331.

It is an arithmetic number, because the mean of its divisors is an integer number (23201838).

Almost surely, 2^428531610 is an apocalyptic number.

428531610 is an abundant number, since it is smaller than the sum of its proper divisors (685156614).

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

428531610 is a wasteful number, since it uses less digits than its factorization.

428531610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84559 (or 84546 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 428531610 is about 20701.0050480647. The cubic root of 428531610 is about 753.9240906537.

The spelling of 428531610 in words is "four hundred twenty-eight million, five hundred thirty-one thousand, six hundred ten".