105212394 has 24 divisors (see below), whose sum is σ = 260526240. Its totient is φ = 30060648.

The previous prime is 105212383. The next prime is 105212479. The reversal of 105212394 is 493212501.

It is a super-2 number, since 2×105212394² = 22139295702422472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417384 + ... + 417635.

It is an arithmetic number, because the mean of its divisors is an integer number (10855260).

Almost surely, 2^105212394 is an apocalyptic number.

105212394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

105212394 is an abundant number, since it is smaller than the sum of its proper divisors (155313846).

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

105212394 is a wasteful number, since it uses less digits than its factorization.

105212394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835034 (or 835031 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 105212394 is about 10257.3092963018. The cubic root of 105212394 is about 472.0872821687.

Adding to 105212394 its reverse (493212501), we get a palindrome (598424895).

The spelling of 105212394 in words is "one hundred five million, two hundred twelve thousand, three hundred ninety-four".