105420750 has 64 divisors (see below), whose sum is σ = 264536064. Its totient is φ = 27962400.

The previous prime is 105420743. The next prime is 105420761. The reversal of 105420750 is 57024501.

It is a super-2 number, since 2×105420750² = 22227069061125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105420750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275059 + ... + 275441.

It is an arithmetic number, because the mean of its divisors is an integer number (4133376).

Almost surely, 2^105420750 is an apocalyptic number.

105420750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 105420750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132268032).

105420750 is an abundant number, since it is smaller than the sum of its proper divisors (159115314).

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

105420750 is a wasteful number, since it uses less digits than its factorization.

105420750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 105420750 is about 10267.4607376897. The cubic root of 105420750 is about 472.3987073258.

The spelling of 105420750 in words is "one hundred five million, four hundred twenty thousand, seven hundred fifty".