105440650 has 36 divisors (see below), whose sum is σ = 228144438. Its totient is φ = 36150240.

The previous prime is 105440603. The next prime is 105440651. The reversal of 105440650 is 56044501.

It can be written as a sum of positive squares in 3 ways, for example, as 43204329 + 62236321 = 6573^2 + 7889^2 .

It is a super-2 number, since 2×105440650² = 22235461344845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (105440651) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19069 + ... + 23968.

Almost surely, 2^105440650 is an apocalyptic number.

105440650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105440650 is an abundant number, since it is smaller than the sum of its proper divisors (122703788).

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

105440650 is a wasteful number, since it uses less digits than its factorization.

105440650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43063 (or 43051 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 105440650 is about 10268.4297728523. The cubic root of 105440650 is about 472.4284299462.

The spelling of 105440650 in words is "one hundred five million, four hundred forty thousand, six hundred fifty".