1630144434 has 16 divisors (see below), whose sum is σ = 3260945088. Its totient is φ = 543272112.

The previous prime is 1630144421. The next prime is 1630144447. The reversal of 1630144434 is 4344410361.

It is an interprime number because it is at equal distance from previous prime (1630144421) and next prime (1630144447).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8584 + ... + 57740.

It is an arithmetic number, because the mean of its divisors is an integer number (203809068).

Almost surely, 2^1630144434 is an apocalyptic number.

1630144434 is an abundant number, since it is smaller than the sum of its proper divisors (1630800654).

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

1630144434 is a wasteful number, since it uses less digits than its factorization.

1630144434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54689.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1630144434 is about 40375.0471702511. The cubic root of 1630144434 is about 1176.9066816744.

Adding to 1630144434 its reverse (4344410361), we get a palindrome (5974554795).

The spelling of 1630144434 in words is "one billion, six hundred thirty million, one hundred forty-four thousand, four hundred thirty-four".