428073488236 has 12 divisors (see below), whose sum is σ = 749156478840. Its totient is φ = 214028780000.

The previous prime is 428073488233. The next prime is 428073488263. The reversal of 428073488236 is 632884370824.

It is a super-2 number, since 2×428073488236² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428073488233) 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, 1869265 + ... + 2085736.

It is an arithmetic number, because the mean of its divisors is an integer number (62429706570).

Almost surely, 2^428073488236 is an apocalyptic number.

It is an amenable number.

428073488236 is a deficient number, since it is larger than the sum of its proper divisors (321082990604).

428073488236 is a wasteful number, since it uses less digits than its factorization.

428073488236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982064 (or 3982062 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 55.

The spelling of 428073488236 in words is "four hundred twenty-eight billion, seventy-three million, four hundred eighty-eight thousand, two hundred thirty-six".