366801381 has 6 divisors (see below), whose sum is σ = 529824230. Its totient is φ = 244534248.

The previous prime is 366801373. The next prime is 366801419. The reversal of 366801381 is 183108663.

It can be written as a sum of positive squares in only one way, i.e., 262148481 + 104652900 = 16191^2 + 10230^2 .

It is not a de Polignac number, because 366801381 - 2³ = 366801373 is a prime.

It is a super-2 number, since 2×366801381² = 269086506207014322, 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 (366801311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20377846 + ... + 20377863.

Almost surely, 2^366801381 is an apocalyptic number.

It is an amenable number.

366801381 is a deficient number, since it is larger than the sum of its proper divisors (163022849).

366801381 is a wasteful number, since it uses less digits than its factorization.

366801381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40755715 (or 40755712 counting only the distinct ones).

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

The square root of 366801381 is about 19152.0594453965. The cubic root of 366801381 is about 715.8307009239.

The spelling of 366801381 in words is "three hundred sixty-six million, eight hundred one thousand, three hundred eighty-one".