163362420 has 120 divisors (see below), whose sum is σ = 551966184. Its totient is φ = 40207104.

The previous prime is 163362413. The next prime is 163362431. The reversal of 163362420 is 24263361.

163362420 is a `hidden beast` number, since 1 + 6 + 33 + 624 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14424804 + 148937616 = 3798^2 + 12204^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17182 + ... + 24938.

Almost surely, 2^163362420 is an apocalyptic number.

163362420 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 163362420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275983092).

163362420 is an abundant number, since it is smaller than the sum of its proper divisors (388603764).

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

163362420 is a wasteful number, since it uses less digits than its factorization.

163362420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7791 (or 7780 counting only the distinct ones).

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

The square root of 163362420 is about 12781.3309166143. The cubic root of 163362420 is about 546.6601121231.

The spelling of 163362420 in words is "one hundred sixty-three million, three hundred sixty-two thousand, four hundred twenty".