163263420 has 36 divisors (see below), whose sum is σ = 495232920. Its totient is φ = 43536864.

The previous prime is 163263413. The next prime is 163263421. The reversal of 163263420 is 24362361.

163263420 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 634 + 20 = 666.

163263420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163263421) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 453330 + ... + 453689.

It is an arithmetic number, because the mean of its divisors is an integer number (13756470).

Almost surely, 2^163263420 is an apocalyptic number.

163263420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163263420 is an abundant number, since it is smaller than the sum of its proper divisors (331969500).

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

163263420 is a wasteful number, since it uses less digits than its factorization.

163263420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907034 (or 907029 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 163263420 is about 12777.4574935705. The cubic root of 163263420 is about 546.5496618185.

The spelling of 163263420 in words is "one hundred sixty-three million, two hundred sixty-three thousand, four hundred twenty".