162774140 has 24 divisors (see below), whose sum is σ = 359817360. Its totient is φ = 61682688.

The previous prime is 162774109. The next prime is 162774191. The reversal of 162774140 is 41477261.

It is a junction number, because it is equal to n+sod(n) for n = 162774097 and 162774106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213797 + ... + 214556.

It is an arithmetic number, because the mean of its divisors is an integer number (14992390).

Almost surely, 2^162774140 is an apocalyptic number.

162774140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162774140 is an abundant number, since it is smaller than the sum of its proper divisors (197043220).

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

162774140 is a wasteful number, since it uses less digits than its factorization.

162774140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428381 (or 428379 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 162774140 is about 12758.2969082868. The cubic root of 162774140 is about 546.0031352269.

The spelling of 162774140 in words is "one hundred sixty-two million, seven hundred seventy-four thousand, one hundred forty".