368658981 has 12 divisors (see below), whose sum is σ = 532711660. Its totient is φ = 245678400.

The previous prime is 368658959. The next prime is 368659001. The reversal of 368658981 is 189856863.

It can be written as a sum of positive squares in 2 ways, for example, as 36180225 + 332478756 = 6015^2 + 18234^2 .

It is not a de Polignac number, because 368658981 - 2¹¹ = 368656933 is a prime.

It is a super-2 number, since 2×368658981² = 271818888543916722, 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 (368658911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23505 + ... + 35913.

Almost surely, 2^368658981 is an apocalyptic number.

It is an amenable number.

368658981 is a deficient number, since it is larger than the sum of its proper divisors (164052679).

368658981 is a wasteful number, since it uses less digits than its factorization.

368658981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15716 (or 15713 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 368658981 is about 19200.4942905124. The cubic root of 368658981 is about 717.0370655955.

The spelling of 368658981 in words is "three hundred sixty-eight million, six hundred fifty-eight thousand, nine hundred eighty-one".