162274140 has 144 divisors (see below), whose sum is σ = 582079680. Its totient is φ = 35804160.

The previous prime is 162274097. The next prime is 162274141. The reversal of 162274140 is 41472261.

162274140 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 (162274141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34320 + ... + 38760.

It is an arithmetic number, because the mean of its divisors is an integer number (4042220).

Almost surely, 2^162274140 is an apocalyptic number.

162274140 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 162274140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291039840).

162274140 is an abundant number, since it is smaller than the sum of its proper divisors (419805540).

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

162274140 is a wasteful number, since it uses less digits than its factorization.

162274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492 (or 4487 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 162274140 is about 12738.6867455009. The cubic root of 162274140 is about 545.4435017461.

The spelling of 162274140 in words is "one hundred sixty-two million, two hundred seventy-four thousand, one hundred forty".