206252420 has 24 divisors (see below), whose sum is σ = 472506048. Its totient is φ = 75000800.

The previous prime is 206252419. The next prime is 206252443. The reversal of 206252420 is 24252602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468536 + ... + 468975.

It is an arithmetic number, because the mean of its divisors is an integer number (19687752).

Almost surely, 2^206252420 is an apocalyptic number.

206252420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206252420 is an abundant number, since it is smaller than the sum of its proper divisors (266253628).

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

206252420 is a wasteful number, since it uses less digits than its factorization.

206252420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937531 (or 937529 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 206252420 is about 14361.4908696834. The cubic root of 206252420 is about 590.8351860377.

The spelling of 206252420 in words is "two hundred six million, two hundred fifty-two thousand, four hundred twenty".