105246990 has 24 divisors (see below), whose sum is σ = 273642408. Its totient is φ = 28065840.

The previous prime is 105246989. The next prime is 105247001. The reversal of 105246990 is 99642501.

105246990 is a `hidden beast` number, since 105 + 2 + 469 + 90 = 666.

It is a super-2 number, since 2×105246990² = 22153857808120200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584616 + ... + 584795.

It is an arithmetic number, because the mean of its divisors is an integer number (11401767).

Almost surely, 2^105246990 is an apocalyptic number.

105246990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105246990 is an abundant number, since it is smaller than the sum of its proper divisors (168395418).

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

105246990 is a wasteful number, since it uses less digits than its factorization.

105246990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169424 (or 1169421 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 105246990 is about 10258.9955648689. The cubic root of 105246990 is about 472.1390205022.

The spelling of 105246990 in words is "one hundred five million, two hundred forty-six thousand, nine hundred ninety".