162840490 has 8 divisors (see below), whose sum is σ = 293112900. Its totient is φ = 65136192.

The previous prime is 162840421. The next prime is 162840521. The reversal of 162840490 is 94048261.

It can be written as a sum of positive squares in 2 ways, for example, as 162078361 + 762129 = 12731^2 + 873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8142015 + ... + 8142034.

Almost surely, 2^162840490 is an apocalyptic number.

162840490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162840490 is a deficient number, since it is larger than the sum of its proper divisors (130272410).

162840490 is a wasteful number, since it uses less digits than its factorization.

162840490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16284056.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 162840490 is about 12760.8969120513. The cubic root of 162840490 is about 546.0773124207.

The spelling of 162840490 in words is "one hundred sixty-two million, eight hundred forty thousand, four hundred ninety".