1358868381 has 8 divisors (see below), whose sum is σ = 1951195680. Its totient is φ = 836226672.

The previous prime is 1358868347. The next prime is 1358868403. The reversal of 1358868381 is 1838688531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1358868381 - 2¹³ = 1358860189 is a prime.

It is a super-2 number, since 2×1358868381² = 3693046553763122322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1358868311) 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, 17421351 + ... + 17421428.

It is an arithmetic number, because the mean of its divisors is an integer number (243899460).

Almost surely, 2^1358868381 is an apocalyptic number.

It is an amenable number.

1358868381 is a deficient number, since it is larger than the sum of its proper divisors (592327299).

1358868381 is a wasteful number, since it uses less digits than its factorization.

1358868381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34842795.

The product of its digits is 1105920, while the sum is 51.

The square root of 1358868381 is about 36862.8319720555. The cubic root of 1358868381 is about 1107.6242728197.

The spelling of 1358868381 in words is "one billion, three hundred fifty-eight million, eight hundred sixty-eight thousand, three hundred eighty-one".