163421488 has 20 divisors (see below), whose sum is σ = 316832400. Its totient is φ = 81658304.

The previous prime is 163421483. The next prime is 163421497. The reversal of 163421488 is 884124361.

It is not an unprimeable number, because it can be changed into a prime (163421483) 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, 38781 + ... + 42787.

It is an arithmetic number, because the mean of its divisors is an integer number (15841620).

Almost surely, 2^163421488 is an apocalyptic number.

It is an amenable number.

163421488 is a deficient number, since it is larger than the sum of its proper divisors (153410912).

163421488 is a wasteful number, since it uses less digits than its factorization.

163421488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564 (or 6558 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 163421488 is about 12783.6414217546. The cubic root of 163421488 is about 546.7259906536.

The spelling of 163421488 in words is "one hundred sixty-three million, four hundred twenty-one thousand, four hundred eighty-eight".