162400140 has 120 divisors (see below), whose sum is σ = 582275232. Its totient is φ = 37117440.

The previous prime is 162400129. The next prime is 162400151. The reversal of 162400140 is 41004261.

162400140 is a `hidden beast` number, since 1 + 624 + 0 + 0 + 1 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (162400129) and next prime (162400151).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 39 ways as a sum of consecutive naturals, for example, 4180 + ... + 18500.

Almost surely, 2^162400140 is an apocalyptic number.

162400140 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 162400140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291137616).

162400140 is an abundant number, since it is smaller than the sum of its proper divisors (419875092).

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

162400140 is a wasteful number, since it uses less digits than its factorization.

162400140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14349 (or 14338 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 162400140 is about 12743.6313506002. The cubic root of 162400140 is about 545.5846376066.

The spelling of 162400140 in words is "one hundred sixty-two million, four hundred thousand, one hundred forty".