1705440428 has 48 divisors (see below), whose sum is σ = 3109790880. Its totient is φ = 817766400.

The previous prime is 1705440427. The next prime is 1705440433. The reversal of 1705440428 is 8240445071.

It is not an unprimeable number, because it can be changed into a prime (1705440427) 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 15 ways as a sum of consecutive naturals, for example, 4831100 + ... + 4831452.

It is an arithmetic number, because the mean of its divisors is an integer number (64787310).

Almost surely, 2^1705440428 is an apocalyptic number.

It is an amenable number.

1705440428 is a deficient number, since it is larger than the sum of its proper divisors (1404350452).

1705440428 is a wasteful number, since it uses less digits than its factorization.

1705440428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 816 counting only the distinct ones).

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

The square root of 1705440428 is about 41296.9784366847. The cubic root of 1705440428 is about 1194.7549851015.

Adding to 1705440428 its reverse (8240445071), we get a palindrome (9945885499).

The spelling of 1705440428 in words is "one billion, seven hundred five million, four hundred forty thousand, four hundred twenty-eight".