202428723 has 16 divisors (see below), whose sum is σ = 308719616. Its totient is φ = 115577280.

The previous prime is 202428713. The next prime is 202428757. The reversal of 202428723 is 327824202.

It is not a de Polignac number, because 202428723 - 2⁵ = 202428691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202428703) 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 15 ways as a sum of consecutive naturals, for example, 27615 + ... + 34167.

It is an arithmetic number, because the mean of its divisors is an integer number (19294976).

Almost surely, 2^202428723 is an apocalyptic number.

202428723 is a deficient number, since it is larger than the sum of its proper divisors (106290893).

202428723 is a wasteful number, since it uses less digits than its factorization.

202428723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 202428723 is about 14227.7448318418. The cubic root of 202428723 is about 587.1612393194.

The spelling of 202428723 in words is "two hundred two million, four hundred twenty-eight thousand, seven hundred twenty-three".