162840380 has 24 divisors (see below), whose sum is σ = 348419232. Its totient is φ = 63906752.

The previous prime is 162840371. The next prime is 162840389. The reversal of 162840380 is 83048261.

It is an interprime number because it is at equal distance from previous prime (162840371) and next prime (162840389).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162840389) 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 7 ways as a sum of consecutive naturals, for example, 75752 + ... + 77871.

It is an arithmetic number, because the mean of its divisors is an integer number (14517468).

Almost surely, 2^162840380 is an apocalyptic number.

162840380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162840380 is an abundant number, since it is smaller than the sum of its proper divisors (185578852).

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

162840380 is a wasteful number, since it uses less digits than its factorization.

162840380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153685 (or 153683 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 162840380 is about 12760.8926020087. The cubic root of 162840380 is about 546.0771894609.

The spelling of 162840380 in words is "one hundred sixty-two million, eight hundred forty thousand, three hundred eighty".