366413381 has 4 divisors (see below), whose sum is σ = 367839372. Its totient is φ = 364987392.

The previous prime is 366413339. The next prime is 366413407. The reversal of 366413381 is 183314663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183314663 = 7 ⋅26187809.

It can be written as a sum of positive squares in 2 ways, for example, as 352162756 + 14250625 = 18766^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 366413381 - 2¹⁰ = 366412357 is a prime.

It is a super-2 number, since 2×366413381² = 268517531551702322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366413881) 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, 712610 + ... + 713123.

It is an arithmetic number, because the mean of its divisors is an integer number (91959843).

Almost surely, 2^366413381 is an apocalyptic number.

It is an amenable number.

366413381 is a deficient number, since it is larger than the sum of its proper divisors (1425991).

366413381 is a wasteful number, since it uses less digits than its factorization.

366413381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425990.

The product of its digits is 31104, while the sum is 35.

The square root of 366413381 is about 19141.9273063085. The cubic root of 366413381 is about 715.5782115975.

The spelling of 366413381 in words is "three hundred sixty-six million, four hundred thirteen thousand, three hundred eighty-one".