1623220232 has 8 divisors (see below), whose sum is σ = 3043537950. Its totient is φ = 811610112.

The previous prime is 1623220223. The next prime is 1623220243. The reversal of 1623220232 is 2320223261.

It can be written as a sum of positive squares in only one way, i.e., 1039804516 + 583415716 = 32246^2 + 24154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1623220198 and 1623220207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101451257 + ... + 101451272.

Almost surely, 2^1623220232 is an apocalyptic number.

It is an amenable number.

1623220232 is a deficient number, since it is larger than the sum of its proper divisors (1420317718).

1623220232 is a wasteful number, since it uses less digits than its factorization.

1623220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202902535 (or 202902531 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1623220232 is about 40289.2073885799. The cubic root of 1623220232 is about 1175.2379737101.

Adding to 1623220232 its reverse (2320223261), we get a palindrome (3943443493).

The spelling of 1623220232 in words is "one billion, six hundred twenty-three million, two hundred twenty thousand, two hundred thirty-two".