663032424 has 64 divisors (see below), whose sum is σ = 1701498240. Its totient is φ = 215228160.

The previous prime is 663032413. The next prime is 663032429. The reversal of 663032424 is 424230366.

It is a happy number.

It is a super-2 number, since 2×663032424² = 879223990550631552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 663032391 and 663032400.

It is not an unprimeable number, because it can be changed into a prime (663032429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148594 + ... + 152990.

It is an arithmetic number, because the mean of its divisors is an integer number (26585910).

Almost surely, 2^663032424 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 663032424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850749120).

663032424 is an abundant number, since it is smaller than the sum of its proper divisors (1038465816).

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

663032424 is a wasteful number, since it uses less digits than its factorization.

663032424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570 (or 4566 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 663032424 is about 25749.4159933774. The cubic root of 663032424 is about 871.9901697683.

The spelling of 663032424 in words is "six hundred sixty-three million, thirty-two thousand, four hundred twenty-four".