163322240 has 32 divisors (see below), whose sum is σ = 390443760. Its totient is φ = 65328640.

The previous prime is 163322231. The next prime is 163322249. The reversal of 163322240 is 42223361.

It is an interprime number because it is at equal distance from previous prime (163322231) and next prime (163322249).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163322249) 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 in 3 ways as a sum of consecutive naturals, for example, 126956 + ... + 128235.

Almost surely, 2^163322240 is an apocalyptic number.

163322240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163322240 is an abundant number, since it is smaller than the sum of its proper divisors (227121520).

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

163322240 is an equidigital number, since it uses as much as digits as its factorization.

163322240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255210 (or 255198 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 163322240 is about 12779.7589961626. The cubic root of 163322240 is about 546.6152903003.

The spelling of 163322240 in words is "one hundred sixty-three million, three hundred twenty-two thousand, two hundred forty".