105840798 has 32 divisors (see below), whose sum is σ = 242472960. Its totient is φ = 30171360.

The previous prime is 105840781. The next prime is 105840799. The reversal of 105840798 is 897048501.

It is a super-2 number, since 2×105840798² = 22404549042553608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105840799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17488 + ... + 22748.

It is an arithmetic number, because the mean of its divisors is an integer number (7577280).

Almost surely, 2^105840798 is an apocalyptic number.

105840798 is an abundant number, since it is smaller than the sum of its proper divisors (136632162).

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

105840798 is a wasteful number, since it uses less digits than its factorization.

105840798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 105840798 is about 10287.8957032038. The cubic root of 105840798 is about 473.0252986005.

The spelling of 105840798 in words is "one hundred five million, eight hundred forty thousand, seven hundred ninety-eight".