162039820 has 48 divisors (see below), whose sum is σ = 353354400. Its totient is φ = 62343680.

The previous prime is 162039811. The next prime is 162039881. The reversal of 162039820 is 28930261.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284496 + ... + 285064.

It is an arithmetic number, because the mean of its divisors is an integer number (7361550).

Almost surely, 2^162039820 is an apocalyptic number.

162039820 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 162039820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176677200).

162039820 is an abundant number, since it is smaller than the sum of its proper divisors (191314580).

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

162039820 is a wasteful number, since it uses less digits than its factorization.

162039820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 162039820 is about 12729.4862425787. The cubic root of 162039820 is about 545.1808394634.

The spelling of 162039820 in words is "one hundred sixty-two million, thirty-nine thousand, eight hundred twenty".