163240340 has 12 divisors (see below), whose sum is σ = 342804756. Its totient is φ = 65296128.

The previous prime is 163240321. The next prime is 163240367. The reversal of 163240340 is 43042361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111429136 + 51811204 = 10556^2 + 7198^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4080989 + ... + 4081028.

It is an arithmetic number, because the mean of its divisors is an integer number (28567063).

Almost surely, 2^163240340 is an apocalyptic number.

163240340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163240340 is an abundant number, since it is smaller than the sum of its proper divisors (179564416).

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

163240340 is a wasteful number, since it uses less digits than its factorization.

163240340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162026 (or 8162024 counting only the distinct ones).

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

The square root of 163240340 is about 12776.5543085763. The cubic root of 163240340 is about 546.5239059763.

The spelling of 163240340 in words is "one hundred sixty-three million, two hundred forty thousand, three hundred forty".