163247240 has 192 divisors, whose sum is σ = 442713600. Its totient is φ = 53913600.

The previous prime is 163247237. The next prime is 163247251. The reversal of 163247240 is 42742361.

163247240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163247240² = 53299322735235200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3981620 + ... + 3981660.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 2^163247240 is an apocalyptic number.

163247240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163247240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221356800).

163247240 is an abundant number, since it is smaller than the sum of its proper divisors (279466360).

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

163247240 is a wasteful number, since it uses less digits than its factorization.

163247240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 163247240 is about 12776.8243315779. The cubic root of 163247240 is about 546.5316062009.

The spelling of 163247240 in words is "one hundred sixty-three million, two hundred forty-seven thousand, two hundred forty".