738621049 has 4 divisors (see below), whose sum is σ = 782069364. Its totient is φ = 695172736.

The previous prime is 738621043. The next prime is 738621061. The reversal of 738621049 is 940126837.

738621049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 422919225 + 315701824 = 20565^2 + 17768^2 .

It is a cyclic number.

It is not a de Polignac number, because 738621049 - 2⁹ = 738620537 is a prime.

It is a super-2 number, since 2×738621049² = 1091122108051720802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738621043) 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, 21724132 + ... + 21724165.

It is an arithmetic number, because the mean of its divisors is an integer number (195517341).

Almost surely, 2^738621049 is an apocalyptic number.

It is an amenable number.

738621049 is a deficient number, since it is larger than the sum of its proper divisors (43448315).

738621049 is a wasteful number, since it uses less digits than its factorization.

738621049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43448314.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 738621049 is about 27177.5835754395. The cubic root of 738621049 is about 903.9419883578.

The spelling of 738621049 in words is "seven hundred thirty-eight million, six hundred twenty-one thousand, forty-nine".