1930305801 has 32 divisors (see below), whose sum is σ = 2693352960. Its totient is φ = 1228195584.

The previous prime is 1930305763. The next prime is 1930305809. The reversal of 1930305801 is 1085030391.

It is a happy number.

It is not a de Polignac number, because 1930305801 - 2³⁰ = 856563977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1930305809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4168896 + ... + 4169358.

It is an arithmetic number, because the mean of its divisors is an integer number (84167280).

Almost surely, 2^1930305801 is an apocalyptic number.

It is an amenable number.

1930305801 is a deficient number, since it is larger than the sum of its proper divisors (763047159).

1930305801 is a wasteful number, since it uses less digits than its factorization.

1930305801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1930305801 is about 43935.2455438683. The cubic root of 1930305801 is about 1245.1128215044.

The spelling of 1930305801 in words is "one billion, nine hundred thirty million, three hundred five thousand, eight hundred one".