162601220 has 48 divisors (see below), whose sum is σ = 348001920. Its totient is φ = 63807744.

The previous prime is 162601211. The next prime is 162601249. The reversal of 162601220 is 22106261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 162601192 and 162601201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296987 + ... + 297533.

It is an arithmetic number, because the mean of its divisors is an integer number (7250040).

Almost surely, 2^162601220 is an apocalyptic number.

162601220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162601220 is an abundant number, since it is smaller than the sum of its proper divisors (185400700).

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

162601220 is a wasteful number, since it uses less digits than its factorization.

162601220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 162601220 is about 12751.5183409663. The cubic root of 162601220 is about 545.8097213853.

Adding to 162601220 its reverse (22106261), we get a palindrome (184707481).

The spelling of 162601220 in words is "one hundred sixty-two million, six hundred one thousand, two hundred twenty".