1930238855 has 8 divisors (see below), whose sum is σ = 2331040992. Its totient is φ = 1534354848.

The previous prime is 1930238801. The next prime is 1930238857. The reversal of 1930238855 is 5588320391.

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

It is a cyclic number.

It is not a de Polignac number, because 1930238855 - 2²⁰ = 1929190279 is a prime.

It is a super-2 number, since 2×1930238855² = 7451644074703422050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930238857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228667 + ... + 1230236.

It is an arithmetic number, because the mean of its divisors is an integer number (291380124).

Almost surely, 2^1930238855 is an apocalyptic number.

1930238855 is a deficient number, since it is larger than the sum of its proper divisors (400802137).

1930238855 is a wasteful number, since it uses less digits than its factorization.

1930238855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459065.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 1930238855 is about 43934.4836660225. The cubic root of 1930238855 is about 1245.0984271898.

The spelling of 1930238855 in words is "one billion, nine hundred thirty million, two hundred thirty-eight thousand, eight hundred fifty-five".