163463428 has 6 divisors (see below), whose sum is σ = 286061006. Its totient is φ = 81731712.

The previous prime is 163463423. The next prime is 163463429. The reversal of 163463428 is 824364361.

It can be written as a sum of positive squares in only one way, i.e., 87459904 + 76003524 = 9352^2 + 8718^2 .

It is a super-2 number, since 2×163463428² = 53440584587022368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163463423) 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 as a sum of consecutive naturals, namely, 20432925 + ... + 20432932.

Almost surely, 2^163463428 is an apocalyptic number.

It is an amenable number.

163463428 is a deficient number, since it is larger than the sum of its proper divisors (122597578).

163463428 is a wasteful number, since it uses less digits than its factorization.

163463428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40865861 (or 40865859 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 163463428 is about 12785.2816941982. The cubic root of 163463428 is about 546.7727566921.

The spelling of 163463428 in words is "one hundred sixty-three million, four hundred sixty-three thousand, four hundred twenty-eight".