105402290 has 16 divisors (see below), whose sum is σ = 216827712. Its totient is φ = 36137904.

The previous prime is 105402277. The next prime is 105402293. The reversal of 105402290 is 92204501.

It is a super-2 number, since 2×105402290² = 22219285474488200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105402293) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 752804 + ... + 752943.

It is an arithmetic number, because the mean of its divisors is an integer number (13551732).

Almost surely, 2^105402290 is an apocalyptic number.

105402290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105402290 is an abundant number, since it is smaller than the sum of its proper divisors (111425422).

105402290 is a wasteful number, since it uses less digits than its factorization.

105402290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505761.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 105402290 is about 10266.5617418881. The cubic root of 105402290 is about 472.3711321435.

Adding to 105402290 its reverse (92204501), we get a palindrome (197606791).

The spelling of 105402290 in words is "one hundred five million, four hundred two thousand, two hundred ninety".