1630434288 has 160 divisors (see below), whose sum is σ = 5017536000. Its totient is φ = 446358528.

The previous prime is 1630434287. The next prime is 1630434301. The reversal of 1630434288 is 8824340361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630434287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1451295 + ... + 1452417.

It is an arithmetic number, because the mean of its divisors is an integer number (31359600).

Almost surely, 2^1630434288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630434288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508768000).

1630434288 is an abundant number, since it is smaller than the sum of its proper divisors (3387101712).

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

1630434288 is a wasteful number, since it uses less digits than its factorization.

1630434288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 1630434288 is about 40378.6365297294. The cubic root of 1630434288 is about 1176.9764323225.

It can be divided in two parts, 163043 and 4288, that added together give a triangular number (167331 = T₅₇₈).

The spelling of 1630434288 in words is "one billion, six hundred thirty million, four hundred thirty-four thousand, two hundred eighty-eight".