1623220264 has 16 divisors (see below), whose sum is σ = 3141717120. Its totient is φ = 785429040.

The previous prime is 1623220243. The next prime is 1623220267. The reversal of 1623220264 is 4620223261.

It is not an unprimeable number, because it can be changed into a prime (1623220267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272374 + ... + 3272869.

It is an arithmetic number, because the mean of its divisors is an integer number (196357320).

Almost surely, 2^1623220264 is an apocalyptic number.

It is an amenable number.

1623220264 is a deficient number, since it is larger than the sum of its proper divisors (1518496856).

1623220264 is a wasteful number, since it uses less digits than its factorization.

1623220264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545280 (or 6545276 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1623220264 is about 40289.2077857086. The cubic root of 1623220264 is about 1175.2379814329.

The spelling of 1623220264 in words is "one billion, six hundred twenty-three million, two hundred twenty thousand, two hundred sixty-four".