738254381 has 2 divisors, whose sum is σ = 738254382. Its totient is φ = 738254380.

The previous prime is 738254357. The next prime is 738254389. The reversal of 738254381 is 183452837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608066281 + 130188100 = 24659^2 + 11410^2 .

It is an emirp because it is prime and its reverse (183452837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 738254381 - 2⁶ = 738254317 is a prime.

It is a super-2 number, since 2×738254381² = 1090039062131386322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (738254389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369127190 + 369127191.

It is an arithmetic number, because the mean of its divisors is an integer number (369127191).

Almost surely, 2^738254381 is an apocalyptic number.

It is an amenable number.

738254381 is a deficient number, since it is larger than the sum of its proper divisors (1).

738254381 is an equidigital number, since it uses as much as digits as its factorization.

738254381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 738254381 is about 27170.8369580328. The cubic root of 738254381 is about 903.7923845962.

The spelling of 738254381 in words is "seven hundred thirty-eight million, two hundred fifty-four thousand, three hundred eighty-one".