162540630 has 192 divisors, whose sum is σ = 523560960. Its totient is φ = 34152192.

The previous prime is 162540619. The next prime is 162540641. The reversal of 162540630 is 36045261.

162540630 is a `hidden beast` number, since 1 + 6 + 25 + 4 + 0 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (162540619) and next prime (162540641).

It is a junction number, because it is equal to n+sod(n) for n = 162540594 and 162540603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442707 + ... + 443073.

It is an arithmetic number, because the mean of its divisors is an integer number (2726880).

Almost surely, 2^162540630 is an apocalyptic number.

162540630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162540630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261780480).

162540630 is an abundant number, since it is smaller than the sum of its proper divisors (361020330).

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

162540630 is a wasteful number, since it uses less digits than its factorization.

162540630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 162540630 is about 12749.1423240938. The cubic root of 162540630 is about 545.7419180409.

Adding to 162540630 its reverse (36045261), we get a palindrome (198585891).

The spelling of 162540630 in words is "one hundred sixty-two million, five hundred forty thousand, six hundred thirty".