630106450 has 48 divisors (see below), whose sum is σ = 1205235360. Its totient is φ = 244944000.

The previous prime is 630106447. The next prime is 630106457. The reversal of 630106450 is 54601036.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (630106457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 776545 + ... + 777355.

It is an arithmetic number, because the mean of its divisors is an integer number (25109070).

Almost surely, 2^630106450 is an apocalyptic number.

630106450 is a deficient number, since it is larger than the sum of its proper divisors (575128910).

630106450 is a wasteful number, since it uses less digits than its factorization.

630106450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 630106450 is about 25101.9212412118. The cubic root of 630106450 is about 857.3101688603.

Adding to 630106450 its reverse (54601036), we get a palindrome (684707486).

The spelling of 630106450 in words is "six hundred thirty million, one hundred six thousand, four hundred fifty".