1623646242 has 32 divisors (see below), whose sum is σ = 3661963200. Its totient is φ = 533136384.

The previous prime is 1623646231. The next prime is 1623646243. The reversal of 1623646242 is 2426463261.

1623646242 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 646 + 2 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1623646197 and 1623646206.

It is not an unprimeable number, because it can be changed into a prime (1623646243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220767 + ... + 228002.

It is an arithmetic number, because the mean of its divisors is an integer number (114436350).

Almost surely, 2^1623646242 is an apocalyptic number.

1623646242 is an abundant number, since it is smaller than the sum of its proper divisors (2038316958).

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

1623646242 is a wasteful number, since it uses less digits than its factorization.

1623646242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448847 (or 448841 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 1623646242 is about 40294.4939414804. The cubic root of 1623646242 is about 1175.3407774510.

The spelling of 1623646242 in words is "one billion, six hundred twenty-three million, six hundred forty-six thousand, two hundred forty-two".