201499452 has 144 divisors (see below), whose sum is σ = 640453632. Its totient is φ = 51891840.

The previous prime is 201499451. The next prime is 201499457. The reversal of 201499452 is 254994102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201499451) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 434973 + ... + 435435.

Almost surely, 2^201499452 is an apocalyptic number.

201499452 is a gapful number since it is divisible by the number (22) 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 201499452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320226816).

201499452 is an abundant number, since it is smaller than the sum of its proper divisors (438954180).

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

201499452 is a wasteful number, since it uses less digits than its factorization.

201499452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 201499452 is about 14195.0502640885. The cubic root of 201499452 is about 586.2613851760.

The spelling of 201499452 in words is "two hundred one million, four hundred ninety-nine thousand, four hundred fifty-two".