1616211234 has 48 divisors (see below), whose sum is σ = 3855234240. Its totient is φ = 485261280.

The previous prime is 1616211229. The next prime is 1616211299. The reversal of 1616211234 is 4321126161.

It is a happy number.

1616211234 is a `hidden beast` number, since 1 + 6 + 1 + 621 + 1 + 2 + 34 = 666.

It is a super-2 number, since 2×1616211234² = 5224277505815605512, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1616211198 and 1616211207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15862 + ... + 59025.

It is an arithmetic number, because the mean of its divisors is an integer number (80317380).

Almost surely, 2^1616211234 is an apocalyptic number.

1616211234 is an abundant number, since it is smaller than the sum of its proper divisors (2239023006).

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

1616211234 is a wasteful number, since it uses less digits than its factorization.

1616211234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75015 (or 75012 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1616211234 is about 40202.1297197051. The cubic root of 1616211234 is about 1173.5439901521.

Adding to 1616211234 its reverse (4321126161), we get a palindrome (5937337395).

The spelling of 1616211234 in words is "one billion, six hundred sixteen million, two hundred eleven thousand, two hundred thirty-four".