663213042 has 32 divisors (see below), whose sum is σ = 1474675200. Its totient is φ = 220940784.

The previous prime is 663213029. The next prime is 663213053. The reversal of 663213042 is 240312366.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 663212997 and 663213015.

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, 144568 + ... + 149084.

It is an arithmetic number, because the mean of its divisors is an integer number (46083600).

Almost surely, 2^663213042 is an apocalyptic number.

663213042 is an abundant number, since it is smaller than the sum of its proper divisors (811462158).

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

663213042 is a wasteful number, since it uses less digits than its factorization.

663213042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247 (or 7241 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 663213042 is about 25752.9229797318. The cubic root of 663213042 is about 872.0693427798.

The spelling of 663213042 in words is "six hundred sixty-three million, two hundred thirteen thousand, forty-two".