1516020404 has 24 divisors (see below), whose sum is σ = 2752850688. Its totient is φ = 729745920.

The previous prime is 1516020397. The next prime is 1516020409. The reversal of 1516020404 is 4040206151.

It is a self number, because there is not a number n which added to its sum of digits gives 1516020404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516020409) 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, 7742 + ... + 55605.

It is an arithmetic number, because the mean of its divisors is an integer number (114702112).

Almost surely, 2^1516020404 is an apocalyptic number.

It is an amenable number.

1516020404 is a deficient number, since it is larger than the sum of its proper divisors (1236830284).

1516020404 is a wasteful number, since it uses less digits than its factorization.

1516020404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63575 (or 63573 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1516020404 is about 38936.1066877519. The cubic root of 1516020404 is about 1148.7751051216.

Adding to 1516020404 its reverse (4040206151), we get a palindrome (5556226555).

The spelling of 1516020404 in words is "one billion, five hundred sixteen million, twenty thousand, four hundred four".