1634342320 has 160 divisors (see below), whose sum is σ = 4263727104. Its totient is φ = 578534400.

The previous prime is 1634342273. The next prime is 1634342341. The reversal of 1634342320 is 232434361.

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 31 ways as a sum of consecutive naturals, for example, 5254965 + ... + 5255275.

Almost surely, 2^1634342320 is an apocalyptic number.

1634342320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1634342320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131863552).

1634342320 is an abundant number, since it is smaller than the sum of its proper divisors (2629384784).

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

1634342320 is a wasteful number, since it uses less digits than its factorization.

1634342320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 1634342320 is about 40426.9998886883. Note that the first 3 decimals coincide. The cubic root of 1634342320 is about 1177.9160575219.

Adding to 1634342320 its reverse (232434361), we get a palindrome (1866776681).

The spelling of 1634342320 in words is "one billion, six hundred thirty-four million, three hundred forty-two thousand, three hundred twenty".