168425000 has 48 divisors (see below), whose sum is σ = 394779420. Its totient is φ = 67360000.

The previous prime is 168424979. The next prime is 168425009. The reversal of 168425000 is 524861.

It can be written as a sum of positive squares in 6 ways, for example, as 19731364 + 148693636 = 4442^2 + 12194^2 .

It is a super-3 number, since 3×168425000³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (168425009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21632 + ... + 28368.

Almost surely, 2^168425000 is an apocalyptic number.

168425000 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 168425000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197389710).

168425000 is an abundant number, since it is smaller than the sum of its proper divisors (226354420).

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

168425000 is an frugal number, since it uses more digits than its factorization.

168425000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768 (or 6744 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 168425000 is about 12977.8657721522. The cubic root of 168425000 is about 552.2497382171.

Adding to 168425000 its reverse (524861), we get a palindrome (168949861).

The spelling of 168425000 in words is "one hundred sixty-eight million, four hundred twenty-five thousand".