162205340 has 72 divisors (see below), whose sum is σ = 378820176. Its totient is φ = 58291200.

The previous prime is 162205339. The next prime is 162205349. The reversal of 162205340 is 43502261.

162205340 = T₂₁ + T₂₂ + ... + T₉₉₀.

162205340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162205349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234395 + ... + 235085.

Almost surely, 2^162205340 is an apocalyptic number.

162205340 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 162205340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189410088).

162205340 is an abundant number, since it is smaller than the sum of its proper divisors (216614836).

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

162205340 is a wasteful number, since it uses less digits than its factorization.

162205340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 162205340 is about 12735.9860238617. The cubic root of 162205340 is about 545.3664062467.

It can be divided in two parts, 162 and 205340, that added together give a palindrome (205502).

The spelling of 162205340 in words is "one hundred sixty-two million, two hundred five thousand, three hundred forty".