162945020 has 48 divisors (see below), whose sum is σ = 397716480. Its totient is φ = 54917184.

The previous prime is 162944993. The next prime is 162945031. The reversal of 162945020 is 20549261.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1604 + ... + 18123.

It is an arithmetic number, because the mean of its divisors is an integer number (8285760).

Almost surely, 2^162945020 is an apocalyptic number.

162945020 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 162945020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198858240).

162945020 is an abundant number, since it is smaller than the sum of its proper divisors (234771460).

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

162945020 is a wasteful number, since it uses less digits than its factorization.

162945020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19802 (or 19800 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 162945020 is about 12764.9919702286. The cubic root of 162945020 is about 546.1941327766.

The spelling of 162945020 in words is "one hundred sixty-two million, nine hundred forty-five thousand, twenty".