162272420 has 24 divisors (see below), whose sum is σ = 346550400. Its totient is φ = 63808352.

The previous prime is 162272413. The next prime is 162272423. The reversal of 162272420 is 24272261.

It is a self number, because there is not a number n which added to its sum of digits gives 162272420.

It is not an unprimeable number, because it can be changed into a prime (162272423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67580 + ... + 69939.

It is an arithmetic number, because the mean of its divisors is an integer number (14439600).

Almost surely, 2^162272420 is an apocalyptic number.

162272420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162272420 is an abundant number, since it is smaller than the sum of its proper divisors (184277980).

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

162272420 is a wasteful number, since it uses less digits than its factorization.

162272420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137587 (or 137585 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 162272420 is about 12738.6192344382. The cubic root of 162272420 is about 545.4415746242.

The spelling of 162272420 in words is "one hundred sixty-two million, two hundred seventy-two thousand, four hundred twenty".