1623646241 has 8 divisors (see below), whose sum is σ = 1855839744. Its totient is φ = 1391513760.

The previous prime is 1623646231. The next prime is 1623646243. The reversal of 1623646241 is 1426463261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1623646241 - 2¹⁸ = 1623384097 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 92981 + ... + 109053.

It is an arithmetic number, because the mean of its divisors is an integer number (231979968).

Almost surely, 2^1623646241 is an apocalyptic number.

It is an amenable number.

1623646241 is a deficient number, since it is larger than the sum of its proper divisors (232193503).

1623646241 is a wasteful number, since it uses less digits than its factorization.

1623646241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30511.

The product of its digits is 41472, while the sum is 35.

The square root of 1623646241 is about 40294.4939290717. The cubic root of 1623646241 is about 1175.3407772097.

The spelling of 1623646241 in words is "one billion, six hundred twenty-three million, six hundred forty-six thousand, two hundred forty-one".