1720240616 has 32 divisors (see below), whose sum is σ = 3261324000. Its totient is φ = 850585536.

The previous prime is 1720240609. The next prime is 1720240673. The reversal of 1720240616 is 6160420271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538175 + ... + 541361.

It is an arithmetic number, because the mean of its divisors is an integer number (101916375).

Almost surely, 2^1720240616 is an apocalyptic number.

It is an amenable number.

1720240616 is a deficient number, since it is larger than the sum of its proper divisors (1541083384).

1720240616 is a wasteful number, since it uses less digits than its factorization.

1720240616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3917 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1720240616 is about 41475.7834886817. The cubic root of 1720240616 is about 1198.2011510959.

Adding to 1720240616 its reverse (6160420271), we get a palindrome (7880660887).

The spelling of 1720240616 in words is "one billion, seven hundred twenty million, two hundred forty thousand, six hundred sixteen".