1634974838 has 8 divisors (see below), whose sum is σ = 2802814032. Its totient is φ = 700703496.

The previous prime is 1634974837. The next prime is 1634974843. The reversal of 1634974838 is 8384794361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1634974838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634974837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58391945 + ... + 58391972.

It is an arithmetic number, because the mean of its divisors is an integer number (350351754).

Almost surely, 2^1634974838 is an apocalyptic number.

1634974838 is a deficient number, since it is larger than the sum of its proper divisors (1167839194).

1634974838 is a wasteful number, since it uses less digits than its factorization.

1634974838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116783926.

The product of its digits is 3483648, while the sum is 53.

The square root of 1634974838 is about 40434.8220968017. The cubic root of 1634974838 is about 1178.0679957062.

The spelling of 1634974838 in words is "one billion, six hundred thirty-four million, nine hundred seventy-four thousand, eight hundred thirty-eight".