162397440 has 288 divisors, whose sum is σ = 596520960. Its totient is φ = 41803776.

The previous prime is 162397439. The next prime is 162397489. The reversal of 162397440 is 44793261.

162397440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 162397395 and 162397404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1278657 + ... + 1278783.

Almost surely, 2^162397440 is an apocalyptic number.

162397440 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 162397440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298260480).

162397440 is an abundant number, since it is smaller than the sum of its proper divisors (434123520).

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

162397440 is a wasteful number, since it uses less digits than its factorization.

162397440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 162397440 is about 12743.5254148921. The cubic root of 162397440 is about 545.5816140323.

The spelling of 162397440 in words is "one hundred sixty-two million, three hundred ninety-seven thousand, four hundred forty".