201452420 has 96 divisors (see below), whose sum is σ = 479770368. Its totient is φ = 70543872.

The previous prime is 201452411. The next prime is 201452437. The reversal of 201452420 is 24254102.

It is a happy number.

201452420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 201452392 and 201452401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413417 + ... + 413903.

It is an arithmetic number, because the mean of its divisors is an integer number (4997608).

Almost surely, 2^201452420 is an apocalyptic number.

201452420 is a gapful number since it is divisible by the number (20) 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 201452420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239885184).

201452420 is an abundant number, since it is smaller than the sum of its proper divisors (278317948).

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

201452420 is a wasteful number, since it uses less digits than its factorization.

201452420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 201452420 is about 14193.3935336127. The cubic root of 201452420 is about 586.2157685242.

The spelling of 201452420 in words is "two hundred one million, four hundred fifty-two thousand, four hundred twenty".