162381492 has 216 divisors, whose sum is σ = 526625736. Its totient is φ = 41803776.

The previous prime is 162381491. The next prime is 162381517. The reversal of 162381492 is 294183261.

162381492 is a `hidden beast` number, since 162 + 3 + 8 + 1 + 492 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6780816 + 155600676 = 2604^2 + 12474^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162381491) 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 71 ways as a sum of consecutive naturals, for example, 1673988 + ... + 1674084.

Almost surely, 2^162381492 is an apocalyptic number.

162381492 is a gapful number since it is divisible by the number (12) 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 162381492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263312868).

162381492 is an abundant number, since it is smaller than the sum of its proper divisors (364244244).

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

162381492 is a wasteful number, since it uses less digits than its factorization.

162381492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 195 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 162381492 is about 12742.8996700123. The cubic root of 162381492 is about 545.5637541029.

The spelling of 162381492 in words is "one hundred sixty-two million, three hundred eighty-one thousand, four hundred ninety-two".