162742140 has 72 divisors (see below), whose sum is σ = 538535088. Its totient is φ = 39452160.

The previous prime is 162742127. The next prime is 162742147. The reversal of 162742140 is 41247261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162742147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39117 + ... + 43076.

It is an arithmetic number, because the mean of its divisors is an integer number (7479654).

Almost surely, 2^162742140 is an apocalyptic number.

162742140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162742140 is an abundant number, since it is smaller than the sum of its proper divisors (375792948).

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

162742140 is a wasteful number, since it uses less digits than its factorization.

162742140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82219 (or 82214 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 162742140 is about 12757.0427607655. The cubic root of 162742140 is about 545.9673530373.

The spelling of 162742140 in words is "one hundred sixty-two million, seven hundred forty-two thousand, one hundred forty".