738436 has 6 divisors (see below), whose sum is σ = 1292270. Its totient is φ = 369216.

The previous prime is 738421. The next prime is 738443. The reversal of 738436 is 634837.

It can be written as a sum of positive squares in only one way, i.e., 553536 + 184900 = 744^2 + 430^2 .

It is a junction number, because it is equal to n+sod(n) for n = 738398 and 738407.

It is an unprimeable number.

738436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92301 + ... + 92308.

2⁷³⁸⁴³⁶ is an apocalyptic number.

It is an amenable number.

738436 is a deficient number, since it is larger than the sum of its proper divisors (553834).

738436 is a wasteful number, since it uses less digits than its factorization.

738436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184613 (or 184611 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 738436 is about 859.3229893352. The cubic root of 738436 is about 90.3866492932.

The spelling of 738436 in words is "seven hundred thirty-eight thousand, four hundred thirty-six".