366294879729 has 15 divisors (see below), whose sum is σ = 547189377097. Its totient is φ = 244192955148.

The previous prime is 366294879721. The next prime is 366294879749. The reversal of 366294879729 is 927978492663.

The square root of 366294879729 is 605223.

It is a perfect power (a square), and thus also a powerful number.

366294879729 is a `hidden beast` number, since 36 + 6 + 2 + 9 + 487 + 97 + 29 = 666.

It is not a de Polignac number, because 366294879729 - 2³ = 366294879721 is a prime.

It is a super-2 number, since 2×366294879729² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366294879721) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5413384 + ... + 5480630.

Almost surely, 2^366294879729 is an apocalyptic number.

366294879729 is the 605223-rd square number.

366294879729 is the 302612-nd centered octagonal number.

It is an amenable number.

366294879729 is a deficient number, since it is larger than the sum of its proper divisors (180894497368).

366294879729 is an frugal number, since it uses more digits than its factorization.

366294879729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134506 (or 67250 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 72.

The spelling of 366294879729 in words is "three hundred sixty-six billion, two hundred ninety-four million, eight hundred seventy-nine thousand, seven hundred twenty-nine".