2129379429 has 8 divisors (see below), whose sum is σ = 2930758912. Its totient is φ = 1373793120.

The previous prime is 2129379407. The next prime is 2129379431. The reversal of 2129379429 is 9249739212.

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

It is not a de Polignac number, because 2129379429 - 2⁵ = 2129379397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129379529) 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, 11448184 + ... + 11448369.

It is an arithmetic number, because the mean of its divisors is an integer number (366344864).

Almost surely, 2^2129379429 is an apocalyptic number.

It is an amenable number.

2129379429 is a deficient number, since it is larger than the sum of its proper divisors (801379483).

2129379429 is a wasteful number, since it uses less digits than its factorization.

2129379429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22896587.

The product of its digits is 489888, while the sum is 48.

The square root of 2129379429 is about 46145.1994144570. The cubic root of 2129379429 is about 1286.5233849938.

The spelling of 2129379429 in words is "two billion, one hundred twenty-nine million, three hundred seventy-nine thousand, four hundred twenty-nine".