428540570 has 16 divisors (see below), whose sum is σ = 771608808. Its totient is φ = 171363840.

The previous prime is 428540551. The next prime is 428540579. The reversal of 428540570 is 75045824.

It can be written as a sum of positive squares in 4 ways, for example, as 295530481 + 133010089 = 17191^2 + 11533^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 428540570.

It is not an unprimeable number, because it can be changed into a prime (428540579) 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, 60242 + ... + 66978.

Almost surely, 2^428540570 is an apocalyptic number.

428540570 is a deficient number, since it is larger than the sum of its proper divisors (343068238).

428540570 is a wasteful number, since it uses less digits than its factorization.

428540570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13105.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 428540570 is about 20701.2214615467. The cubic root of 428540570 is about 753.9293451185.

The spelling of 428540570 in words is "four hundred twenty-eight million, five hundred forty thousand, five hundred seventy".