1919934254 has 16 divisors (see below), whose sum is σ = 3330972288. Its totient is φ = 812914872.

The previous prime is 1919934229. The next prime is 1919934259. The reversal of 1919934254 is 4524399191.

It is a super-2 number, since 2×1919934254² = 7372295079365073032, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1919934199 and 1919934208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919934259) 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, 824972 + ... + 827295.

It is an arithmetic number, because the mean of its divisors is an integer number (208185768).

Almost surely, 2^1919934254 is an apocalyptic number.

1919934254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1919934254 is a deficient number, since it is larger than the sum of its proper divisors (1411038034).

1919934254 is a wasteful number, since it uses less digits than its factorization.

1919934254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652359.

The product of its digits is 349920, while the sum is 47.

The square root of 1919934254 is about 43817.0543738394. The cubic root of 1919934254 is about 1242.8788155454.

The spelling of 1919934254 in words is "one billion, nine hundred nineteen million, nine hundred thirty-four thousand, two hundred fifty-four".