1914474381 has 8 divisors (see below), whose sum is σ = 2552921280. Its totient is φ = 1276171872.

The previous prime is 1914474349. The next prime is 1914474389. The reversal of 1914474381 is 1834744191.

1914474381 is a nontrivial binomial coefficient, being equal to C(61879, 2).

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

It is not a de Polignac number, because 1914474381 - 2⁵ = 1914474349 is a prime.

It is a super-2 number, since 2×1914474381² = 7330424311010666322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914474389) 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, 1 + ... + 61878.

It is an arithmetic number, because the mean of its divisors is an integer number (319115160).

Almost surely, 2^1914474381 is an apocalyptic number.

1914474381 is the 61878-th triangular number.

It is an amenable number.

1914474381 is a deficient number, since it is larger than the sum of its proper divisors (638446899).

1914474381 is a wasteful number, since it uses less digits than its factorization.

1914474381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72195.

The product of its digits is 96768, while the sum is 42.

The square root of 1914474381 is about 43754.7069582234. The cubic root of 1914474381 is about 1241.6995384858.

The spelling of 1914474381 in words is "one billion, nine hundred fourteen million, four hundred seventy-four thousand, three hundred eighty-one".