427164500 has 144 divisors (see below), whose sum is σ = 1110380544. Its totient is φ = 140616000.

The previous prime is 427164499. The next prime is 427164509. The reversal of 427164500 is 5461724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427164509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3363437 + ... + 3363563.

It is an arithmetic number, because the mean of its divisors is an integer number (7710976).

Almost surely, 2^427164500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427164500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555190272).

427164500 is an abundant number, since it is smaller than the sum of its proper divisors (683216044).

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

427164500 is a wasteful number, since it uses less digits than its factorization.

427164500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 427164500 is about 20667.9582929713. The cubic root of 427164500 is about 753.1215087388.

The spelling of 427164500 in words is "four hundred twenty-seven million, one hundred sixty-four thousand, five hundred".