202466420 has 24 divisors (see below), whose sum is σ = 457886184. Its totient is φ = 74756736.

The previous prime is 202466393. The next prime is 202466423. The reversal of 202466420 is 24664202.

It can be written as a sum of positive squares in 4 ways, for example, as 10588516 + 191877904 = 3254^2 + 13852^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 202466420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202466423) by changing a digit.

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, 389099 + ... + 389618.

It is an arithmetic number, because the mean of its divisors is an integer number (19078591).

Almost surely, 2^202466420 is an apocalyptic number.

202466420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202466420 is an abundant number, since it is smaller than the sum of its proper divisors (255419764).

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

202466420 is a wasteful number, since it uses less digits than its factorization.

202466420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778739 (or 778737 counting only the distinct ones).

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

The square root of 202466420 is about 14229.0695409081. The cubic root of 202466420 is about 587.1976848117.

The spelling of 202466420 in words is "two hundred two million, four hundred sixty-six thousand, four hundred twenty".