163970436 has 48 divisors (see below), whose sum is σ = 437892224. Its totient is φ = 46780416.

The previous prime is 163970419. The next prime is 163970459. The reversal of 163970436 is 634079361.

It is a junction number, because it is equal to n+sod(n) for n = 163970394 and 163970403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96006 + ... + 97698.

Almost surely, 2^163970436 is an apocalyptic number.

It is an amenable number.

163970436 is an abundant number, since it is smaller than the sum of its proper divisors (273921788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163970436 is a wasteful number, since it uses less digits than its factorization.

163970436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860 (or 2858 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 163970436 is about 12805.0941425669. The cubic root of 163970436 is about 547.3374743294.

The spelling of 163970436 in words is "one hundred sixty-three million, nine hundred seventy thousand, four hundred thirty-six".