1934147808 has 192 divisors, whose sum is σ = 5914036800. Its totient is φ = 621831168.

The previous prime is 1934147777. The next prime is 1934147821. The reversal of 1934147808 is 8087414391.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2029060 + ... + 2030012.

It is an arithmetic number, because the mean of its divisors is an integer number (30802275).

Almost surely, 2^1934147808 is an apocalyptic number.

1934147808 is a gapful number since it is divisible by the number (18) 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 1934147808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957018400).

1934147808 is an abundant number, since it is smaller than the sum of its proper divisors (3979888992).

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

1934147808 is an frugal number, since it uses more digits than its factorization.

1934147808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1934147808 is about 43978.9473271019. The cubic root of 1934147808 is about 1245.9383490611.

The spelling of 1934147808 in words is "one billion, nine hundred thirty-four million, one hundred forty-seven thousand, eight hundred eight".