1438609041 has 27 divisors (see below), whose sum is σ = 2131066171. Its totient is φ = 935177424.

The previous prime is 1438609031. The next prime is 1438609063. The reversal of 1438609041 is 1409068341.

The square root of 1438609041 is 37929.

It is a perfect power (a square), and thus also a powerful number.

1438609041 is a `hidden beast` number, since 1 + 4 + 3 + 8 + 609 + 0 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94653441 + 1343955600 = 9729^2 + 36660^2 .

It is not a de Polignac number, because 1438609041 - 2⁹ = 1438608529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1438608987 and 1438609005.

It is not an unprimeable number, because it can be changed into a prime (1438609001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5347855 + ... + 5348123.

Almost surely, 2^1438609041 is an apocalyptic number.

1438609041 is the 37929-th square number.

1438609041 is the 18965-th centered octagonal number.

It is an amenable number.

1438609041 is a deficient number, since it is larger than the sum of its proper divisors (692457130).

1438609041 is an frugal number, since it uses more digits than its factorization.

1438609041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The cubic root of 1438609041 is about 1128.8795223753.

Multiplying 1438609041 by its sum of digits (36), we get a square (51789925476 = 227574²).

Multiplying 1438609041 by its product of nonzero digits (20736), we get a square (29830997074176 = 5461776²).

The spelling of 1438609041 in words is "one billion, four hundred thirty-eight million, six hundred nine thousand, forty-one".