162401620 has 24 divisors (see below), whose sum is σ = 355872384. Its totient is φ = 62136096.

The previous prime is 162401611. The next prime is 162401633. The reversal of 162401620 is 26104261.

It is a junction number, because it is equal to n+sod(n) for n = 162401591 and 162401600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176064 + ... + 176983.

It is an arithmetic number, because the mean of its divisors is an integer number (14828016).

Almost surely, 2^162401620 is an apocalyptic number.

162401620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162401620 is an abundant number, since it is smaller than the sum of its proper divisors (193470764).

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

162401620 is a wasteful number, since it uses less digits than its factorization.

162401620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353079 (or 353077 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 162401620 is about 12743.6894186888. The cubic root of 162401620 is about 545.5862949591.

Adding to 162401620 its reverse (26104261), we get a palindrome (188505881).

The spelling of 162401620 in words is "one hundred sixty-two million, four hundred one thousand, six hundred twenty".