630243450 has 96 divisors (see below), whose sum is σ = 1753012800. Its totient is φ = 166484160.

The previous prime is 630243437. The next prime is 630243451. The reversal of 630243450 is 54342036.

630243450 is a `hidden beast` number, since 630 + 24 + 3 + 4 + 5 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (630243451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145009 + ... + 149291.

It is an arithmetic number, because the mean of its divisors is an integer number (18260550).

Almost surely, 2^630243450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630243450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (876506400).

630243450 is an abundant number, since it is smaller than the sum of its proper divisors (1122769350).

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

630243450 is a wasteful number, since it uses less digits than its factorization.

630243450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413 (or 4402 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 630243450 is about 25104.6499676853. The cubic root of 630243450 is about 857.3722975064.

Adding to 630243450 its reverse (54342036), we get a palindrome (684585486).

The spelling of 630243450 in words is "six hundred thirty million, two hundred forty-three thousand, four hundred fifty".