630423042 has 16 divisors (see below), whose sum is σ = 1262019072. Its totient is φ = 209945520.

The previous prime is 630423029. The next prime is 630423061. The reversal of 630423042 is 240324036.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41809 + ... + 54852.

It is an arithmetic number, because the mean of its divisors is an integer number (78876192).

Almost surely, 2^630423042 is an apocalyptic number.

630423042 is an abundant number, since it is smaller than the sum of its proper divisors (631596030).

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

630423042 is a wasteful number, since it uses less digits than its factorization.

630423042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97753.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 630423042 is about 25108.2265801470. The cubic root of 630423042 is about 857.4537277232.

Adding to 630423042 its reverse (240324036), we get a palindrome (870747078).

The spelling of 630423042 in words is "six hundred thirty million, four hundred twenty-three thousand, forty-two".