420135929 has 8 divisors (see below), whose sum is σ = 438020352. Its totient is φ = 402620400.

The previous prime is 420135889. The next prime is 420135941. The reversal of 420135929 is 929531024.

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

It is a cyclic number.

It is not a de Polignac number, because 420135929 - 2¹⁶ = 420070393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420135959) 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, 89897 + ... + 94454.

It is an arithmetic number, because the mean of its divisors is an integer number (54752544).

Almost surely, 2^420135929 is an apocalyptic number.

It is an amenable number.

420135929 is a deficient number, since it is larger than the sum of its proper divisors (17884423).

420135929 is a wasteful number, since it uses less digits than its factorization.

420135929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184447.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 420135929 is about 20497.2175916635. The cubic root of 420135929 is about 748.9680200820.

The spelling of 420135929 in words is "four hundred twenty million, one hundred thirty-five thousand, nine hundred twenty-nine".