738224728 has 32 divisors (see below), whose sum is σ = 1473012000. Its totient is φ = 345641472.

The previous prime is 738224719. The next prime is 738224749. The reversal of 738224728 is 827422837.

It is a happy number.

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, 13426 + ... + 40702.

It is an arithmetic number, because the mean of its divisors is an integer number (46031625).

Almost surely, 2^738224728 is an apocalyptic number.

It is an amenable number.

738224728 is a deficient number, since it is larger than the sum of its proper divisors (734787272).

738224728 is a wasteful number, since it uses less digits than its factorization.

738224728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27499 (or 27495 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The square root of 738224728 is about 27170.2912755826. The cubic root of 738224728 is about 903.7802837472.

The spelling of 738224728 in words is "seven hundred thirty-eight million, two hundred twenty-four thousand, seven hundred twenty-eight".