381272340730 has 16 divisors (see below), whose sum is σ = 690896190600. Its totient is φ = 151485385792.

The previous prime is 381272340707. The next prime is 381272340731. The reversal of 381272340730 is 37043272183.

It can be written as a sum of positive squares in 4 ways, for example, as 318787839769 + 62484500961 = 564613^2 + 249969^2 .

It is not an unprimeable number, because it can be changed into a prime (381272340731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127942249 + ... + 127945228.

Almost surely, 2^381272340730 is an apocalyptic number.

381272340730 is a deficient number, since it is larger than the sum of its proper divisors (309623849870).

381272340730 is a wasteful number, since it uses less digits than its factorization.

381272340730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255887633.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 381272340730 in words is "three hundred eighty-one billion, two hundred seventy-two million, three hundred forty thousand, seven hundred thirty".