163397380 has 24 divisors (see below), whose sum is σ = 350437248. Its totient is φ = 63967968.

The previous prime is 163397363. The next prime is 163397393. The reversal of 163397380 is 83793361.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85974 + ... + 87853.

It is an arithmetic number, because the mean of its divisors is an integer number (14601552).

Almost surely, 2^163397380 is an apocalyptic number.

163397380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163397380 is an abundant number, since it is smaller than the sum of its proper divisors (187039868).

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

163397380 is a wasteful number, since it uses less digits than its factorization.

163397380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173883 (or 173881 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 163397380 is about 12782.6984631571. The cubic root of 163397380 is about 546.6991049229.

The spelling of 163397380 in words is "one hundred sixty-three million, three hundred ninety-seven thousand, three hundred eighty".