1438074405 has 40 divisors (see below), whose sum is σ = 2587196832. Its totient is φ = 764201952.

The previous prime is 1438074343. The next prime is 1438074409. The reversal of 1438074405 is 5044708341.

It is not a de Polignac number, because 1438074405 - 2¹¹ = 1438072357 is a prime.

It is a super-2 number, since 2×1438074405² = 4136115988632208050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1438074405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438074409) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 108342 + ... + 120888.

Almost surely, 2^1438074405 is an apocalyptic number.

1438074405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1438074405 is a deficient number, since it is larger than the sum of its proper divisors (1149122427).

1438074405 is a wasteful number, since it uses less digits than its factorization.

1438074405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12847 (or 12838 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1438074405 is about 37921.9514925063. The cubic root of 1438074405 is about 1128.7396617192.

The spelling of 1438074405 in words is "one billion, four hundred thirty-eight million, seventy-four thousand, four hundred five".