17040320420 has 12 divisors (see below), whose sum is σ = 35784672924. Its totient is φ = 6816128160.

The previous prime is 17040320399. The next prime is 17040320441. The reversal of 17040320420 is 2402304071.

It is an interprime number because it is at equal distance from previous prime (17040320399) and next prime (17040320441).

It can be written as a sum of positive squares in 2 ways, for example, as 13195576384 + 3844744036 = 114872^2 + 62006^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426007991 + ... + 426008030.

It is an arithmetic number, because the mean of its divisors is an integer number (2982056077).

Almost surely, 2^17040320420 is an apocalyptic number.

17040320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17040320420 is an abundant number, since it is smaller than the sum of its proper divisors (18744352504).

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

17040320420 is a wasteful number, since it uses less digits than its factorization.

17040320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852016030 (or 852016028 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

Adding to 17040320420 its reverse (2402304071), we get a palindrome (19442624491).

The spelling of 17040320420 in words is "seventeen billion, forty million, three hundred twenty thousand, four hundred twenty".