1634665042 has 8 divisors (see below), whose sum is σ = 2456531532. Its totient is φ = 815821200.

The previous prime is 1634665037. The next prime is 1634665079. The reversal of 1634665042 is 2405664361.

It can be written as a sum of positive squares in 2 ways, for example, as 1616763681 + 17901361 = 40209^2 + 4231^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1634664992 and 1634665010.

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 3 ways as a sum of consecutive naturals, for example, 754309 + ... + 756472.

Almost surely, 2^1634665042 is an apocalyptic number.

1634665042 is a deficient number, since it is larger than the sum of its proper divisors (821866490).

1634665042 is a wasteful number, since it uses less digits than its factorization.

1634665042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511324.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1634665042 is about 40430.9911083070. The cubic root of 1634665042 is about 1177.9935839991.

The spelling of 1634665042 in words is "one billion, six hundred thirty-four million, six hundred sixty-five thousand, forty-two".