1421690829 has 8 divisors (see below), whose sum is σ = 2041402272. Its totient is φ = 874886640.

The previous prime is 1421690819. The next prime is 1421690833. The reversal of 1421690829 is 9280961241.

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

It is not a de Polignac number, because 1421690829 - 2⁴ = 1421690813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421690819) 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, 18226767 + ... + 18226844.

It is an arithmetic number, because the mean of its divisors is an integer number (255175284).

Almost surely, 2^1421690829 is an apocalyptic number.

It is an amenable number.

1421690829 is a deficient number, since it is larger than the sum of its proper divisors (619711443).

1421690829 is a wasteful number, since it uses less digits than its factorization.

1421690829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36453627.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1421690829 is about 37705.3156597316. The cubic root of 1421690829 is about 1124.4368088709.

The spelling of 1421690829 in words is "one billion, four hundred twenty-one million, six hundred ninety thousand, eight hundred twenty-nine".