1634540734 has 8 divisors (see below), whose sum is σ = 2452671360. Its totient is φ = 816983616.

The previous prime is 1634540729. The next prime is 1634540741. The reversal of 1634540734 is 4370454361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1634540734² = 5343446822210517512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1634540693 and 1634540702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136179 + ... + 147694.

It is an arithmetic number, because the mean of its divisors is an integer number (306583920).

Almost surely, 2^1634540734 is an apocalyptic number.

1634540734 is a deficient number, since it is larger than the sum of its proper divisors (818130626).

1634540734 is a wasteful number, since it uses less digits than its factorization.

1634540734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286754.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 1634540734 is about 40429.4537929960. The cubic root of 1634540734 is about 1177.9637230929.

The spelling of 1634540734 in words is "one billion, six hundred thirty-four million, five hundred forty thousand, seven hundred thirty-four".