420206246 has 4 divisors (see below), whose sum is σ = 630309372. Its totient is φ = 210103122.

The previous prime is 420206239. The next prime is 420206249. The reversal of 420206246 is 642602024.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420206249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051560 + ... + 105051563.

It is an arithmetic number, because the mean of its divisors is an integer number (157577343).

Almost surely, 2^420206246 is an apocalyptic number.

420206246 is a deficient number, since it is larger than the sum of its proper divisors (210103126).

420206246 is a wasteful number, since it uses less digits than its factorization.

420206246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210103125.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 420206246 is about 20498.9328014899. The cubic root of 420206246 is about 749.0098019933.

The spelling of 420206246 in words is "four hundred twenty million, two hundred six thousand, two hundred forty-six".