162397280 has 48 divisors (see below), whose sum is σ = 389415600. Its totient is φ = 63985152.

The previous prime is 162397271. The next prime is 162397307. The reversal of 162397280 is 82793261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3146 + ... + 18294.

It is an arithmetic number, because the mean of its divisors is an integer number (8112825).

Almost surely, 2^162397280 is an apocalyptic number.

162397280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162397280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194707800).

162397280 is an abundant number, since it is smaller than the sum of its proper divisors (227018320).

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

162397280 is a wasteful number, since it uses less digits than its factorization.

162397280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15231 (or 15223 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 162397280 is about 12743.5191371928. The cubic root of 162397280 is about 545.5814348565.

The spelling of 162397280 in words is "one hundred sixty-two million, three hundred ninety-seven thousand, two hundred eighty".