163043240 has 32 divisors (see below), whose sum is σ = 372866760. Its totient is φ = 64147200.

The previous prime is 163043239. The next prime is 163043267. The reversal of 163043240 is 42340361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52330756 + 110712484 = 7234^2 + 10522^2 .

It is a super-3 number, since 3×163043240³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30971 + ... + 35850.

Almost surely, 2^163043240 is an apocalyptic number.

163043240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163043240 is an abundant number, since it is smaller than the sum of its proper divisors (209823520).

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

163043240 is a wasteful number, since it uses less digits than its factorization.

163043240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66893 (or 66889 counting only the distinct ones).

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

The square root of 163043240 is about 12768.8386316062. The cubic root of 163043240 is about 546.3038557007.

The spelling of 163043240 in words is "one hundred sixty-three million, forty-three thousand, two hundred forty".