1912195830 has 32 divisors (see below), whose sum is σ = 4590432000. Its totient is φ = 509789792.

The previous prime is 1912195801. The next prime is 1912195837. The reversal of 1912195830 is 385912191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912195837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202351 + ... + 211589.

It is an arithmetic number, because the mean of its divisors is an integer number (143451000).

Almost surely, 2^1912195830 is an apocalyptic number.

1912195830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1912195830 is an abundant number, since it is smaller than the sum of its proper divisors (2678236170).

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

1912195830 is a wasteful number, since it uses less digits than its factorization.

1912195830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16148.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 1912195830 is about 43728.6614247452. The cubic root of 1912195830 is about 1241.2067315243.

The spelling of 1912195830 in words is "one billion, nine hundred twelve million, one hundred ninety-five thousand, eight hundred thirty".