728025238 has 16 divisors (see below), whose sum is σ = 1156850640. Its totient is φ = 342429696.

The previous prime is 728025227. The next prime is 728025247. The reversal of 728025238 is 832520827.

It is a junction number, because it is equal to n+sod(n) for n = 728025197 and 728025206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87445 + ... + 95407.

It is an arithmetic number, because the mean of its divisors is an integer number (72303165).

Almost surely, 2^728025238 is an apocalyptic number.

728025238 is a deficient number, since it is larger than the sum of its proper divisors (428825402).

728025238 is a wasteful number, since it uses less digits than its factorization.

728025238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 728025238 is about 26981.9428136671. The cubic root of 728025238 is about 899.5986844520.

The spelling of 728025238 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred thirty-eight".