1623447472 has 20 divisors (see below), whose sum is σ = 3185247520. Its totient is φ = 801448128.

The previous prime is 1623447443. The next prime is 1623447509. The reversal of 1623447472 is 2747443261.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640923 + ... + 643450.

It is an arithmetic number, because the mean of its divisors is an integer number (159262376).

Almost surely, 2^1623447472 is an apocalyptic number.

It is an amenable number.

1623447472 is a deficient number, since it is larger than the sum of its proper divisors (1561800048).

1623447472 is a wasteful number, since it uses less digits than its factorization.

1623447472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284460 (or 1284454 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 1623447472 is about 40292.0273999708. The cubic root of 1623447472 is about 1175.2928129756.

The spelling of 1623447472 in words is "one billion, six hundred twenty-three million, four hundred forty-seven thousand, four hundred seventy-two".