736650128 has 20 divisors (see below), whose sum is σ = 1429439388. Its totient is φ = 367762560.

The previous prime is 736650119. The next prime is 736650143. The reversal of 736650128 is 821056637.

It can be written as a sum of positive squares in 2 ways, for example, as 664195984 + 72454144 = 25772^2 + 8512^2 .

It is a super-2 number, since 2×736650128² = 1085306822164832768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 736650091 and 736650100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24251 + ... + 45402.

Almost surely, 2^736650128 is an apocalyptic number.

It is an amenable number.

736650128 is a deficient number, since it is larger than the sum of its proper divisors (692789260).

736650128 is a wasteful number, since it uses less digits than its factorization.

736650128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70322 (or 70316 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 736650128 is about 27141.2993056707. The cubic root of 736650128 is about 903.1372521703.

The spelling of 736650128 in words is "seven hundred thirty-six million, six hundred fifty thousand, one hundred twenty-eight".