105989394 has 16 divisors (see below), whose sum is σ = 242261568. Its totient is φ = 30282672.

The previous prime is 105989333. The next prime is 105989399. The reversal of 105989394 is 493989501.

It is a super-2 number, since 2×105989394² = 22467503280974472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105989399) 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, 1261737 + ... + 1261820.

It is an arithmetic number, because the mean of its divisors is an integer number (15141348).

Almost surely, 2^105989394 is an apocalyptic number.

105989394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

105989394 is an abundant number, since it is smaller than the sum of its proper divisors (136272174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105989394 is a wasteful number, since it uses less digits than its factorization.

105989394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523569.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 105989394 is about 10295.1150552094. The cubic root of 105989394 is about 473.2465642487.

The spelling of 105989394 in words is "one hundred five million, nine hundred eighty-nine thousand, three hundred ninety-four".