420992706 has 8 divisors (see below), whose sum is σ = 841985424. Its totient is φ = 140330900.

The previous prime is 420992701. The next prime is 420992723. The reversal of 420992706 is 607299024.

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

420992706 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420992701) 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, 35082720 + ... + 35082731.

It is an arithmetic number, because the mean of its divisors is an integer number (105248178).

Almost surely, 2^420992706 is an apocalyptic number.

420992706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420992706 is a wasteful number, since it uses less digits than its factorization.

420992706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70165456.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 420992706 is about 20518.1067840091. The cubic root of 420992706 is about 749.4767942036.

The spelling of 420992706 in words is "four hundred twenty million, nine hundred ninety-two thousand, seven hundred six".