105242434 has 24 divisors (see below), whose sum is σ = 180047952. Its totient is φ = 45752520.

The previous prime is 105242383. The next prime is 105242477. The reversal of 105242434 is 434242501.

It is a happy number.

It is a super-2 number, since 2×105242434² = 22151939828488712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 105242399 and 105242408.

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, 7117 + ... + 16159.

It is an arithmetic number, because the mean of its divisors is an integer number (7501998).

Almost surely, 2^105242434 is an apocalyptic number.

105242434 is a deficient number, since it is larger than the sum of its proper divisors (74805518).

105242434 is a wasteful number, since it uses less digits than its factorization.

105242434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102 (or 9079 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 105242434 is about 10258.7735134372. The cubic root of 105242434 is about 472.1322076505.

Adding to 105242434 its reverse (434242501), we get a palindrome (539484935).

The spelling of 105242434 in words is "one hundred five million, two hundred forty-two thousand, four hundred thirty-four".