630322442 has 16 divisors (see below), whose sum is σ = 989359872. Its totient is φ = 300814560.

The previous prime is 630322439. The next prime is 630322457. The reversal of 630322442 is 244223036.

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, 65108 + ... + 74159.

It is an arithmetic number, because the mean of its divisors is an integer number (61834992).

Almost surely, 2^630322442 is an apocalyptic number.

630322442 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

630322442 is a deficient number, since it is larger than the sum of its proper divisors (359037430).

630322442 is a wasteful number, since it uses less digits than its factorization.

630322442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139373.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 630322442 is about 25106.2231727514. The cubic root of 630322442 is about 857.4081157939.

Adding to 630322442 its reverse (244223036), we get a palindrome (874545478).

The spelling of 630322442 in words is "six hundred thirty million, three hundred twenty-two thousand, four hundred forty-two".