630067312 has 80 divisors (see below), whose sum is σ = 1457049600. Its totient is φ = 258255360.

The previous prime is 630067301. The next prime is 630067331. The reversal of 630067312 is 213760036.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307989 + ... + 310027.

It is an arithmetic number, because the mean of its divisors is an integer number (18213120).

Almost surely, 2^630067312 is an apocalyptic number.

630067312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630067312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728524800).

630067312 is an abundant number, since it is smaller than the sum of its proper divisors (826982288).

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

630067312 is a wasteful number, since it uses less digits than its factorization.

630067312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 630067312 is about 25101.1416473435. The cubic root of 630067312 is about 857.2924183674.

The spelling of 630067312 in words is "six hundred thirty million, sixty-seven thousand, three hundred twelve".