663192740 has 48 divisors (see below), whose sum is σ = 1603857024. Its totient is φ = 225638400.

The previous prime is 663192731. The next prime is 663192743. The reversal of 663192740 is 47291366.

It is a super-2 number, since 2×663192740² = 879649220777415200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 663192694 and 663192703.

It is not an unprimeable number, because it can be changed into a prime (663192743) 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 15 ways as a sum of consecutive naturals, for example, 260 + ... + 36420.

It is an arithmetic number, because the mean of its divisors is an integer number (33413688).

Almost surely, 2^663192740 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 663192740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801928512).

663192740 is an abundant number, since it is smaller than the sum of its proper divisors (940664284).

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

663192740 is a wasteful number, since it uses less digits than its factorization.

663192740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36308 (or 36306 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 663192740 is about 25752.5288078666. The cubic root of 663192740 is about 872.0604442151.

The spelling of 663192740 in words is "six hundred sixty-three million, one hundred ninety-two thousand, seven hundred forty".