1929414389 has 4 divisors (see below), whose sum is σ = 2205045024. Its totient is φ = 1653783756.

The previous prime is 1929414373. The next prime is 1929414391. The reversal of 1929414389 is 9834149291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1929414389 - 2⁴ = 1929414373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1929414089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137815307 + ... + 137815320.

It is an arithmetic number, because the mean of its divisors is an integer number (551261256).

Almost surely, 2^1929414389 is an apocalyptic number.

It is an amenable number.

1929414389 is a deficient number, since it is larger than the sum of its proper divisors (275630635).

1929414389 is an equidigital number, since it uses as much as digits as its factorization.

1929414389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275630634.

The product of its digits is 559872, while the sum is 50.

The square root of 1929414389 is about 43925.0997608429. The cubic root of 1929414389 is about 1244.9211283186.

The spelling of 1929414389 in words is "one billion, nine hundred twenty-nine million, four hundred fourteen thousand, three hundred eighty-nine".