663019452 has 48 divisors (see below), whose sum is σ = 1729530880. Its totient is φ = 219644784.

The previous prime is 663019447. The next prime is 663019519. The reversal of 663019452 is 254910366.

It is a happy number.

663019452 is a `hidden beast` number, since 6 + 630 + 19 + 4 + 5 + 2 = 666.

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

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, 1228 + ... + 36435.

Almost surely, 2^663019452 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 663019452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864765440).

663019452 is an abundant number, since it is smaller than the sum of its proper divisors (1066511428).

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

663019452 is a wasteful number, since it uses less digits than its factorization.

663019452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37839 (or 37831 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 663019452 is about 25749.1641029374. The cubic root of 663019452 is about 871.9844830025.

The spelling of 663019452 in words is "six hundred sixty-three million, nineteen thousand, four hundred fifty-two".