1620424113 has 32 divisors (see below), whose sum is σ = 2697676800. Its totient is φ = 840533760.

The previous prime is 1620424109. The next prime is 1620424133. The reversal of 1620424113 is 3114240261.

It is not a de Polignac number, because 1620424113 - 2² = 1620424109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1620424133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163113 + ... + 172761.

It is an arithmetic number, because the mean of its divisors is an integer number (84302400).

Almost surely, 2^1620424113 is an apocalyptic number.

It is an amenable number.

1620424113 is a deficient number, since it is larger than the sum of its proper divisors (1077252687).

1620424113 is a wasteful number, since it uses less digits than its factorization.

1620424113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10397.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1620424113 is about 40254.4918363156. The cubic root of 1620424113 is about 1174.5627739179.

Adding to 1620424113 its reverse (3114240261), we get a palindrome (4734664374).

The spelling of 1620424113 in words is "one billion, six hundred twenty million, four hundred twenty-four thousand, one hundred thirteen".