105062640 has 80 divisors (see below), whose sum is σ = 329124768. Its totient is φ = 27721728.

The previous prime is 105062591. The next prime is 105062651. The reversal of 105062640 is 46260501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×105062640² = 22076316647539200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 105062640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21024 + ... + 25536.

Almost surely, 2^105062640 is an apocalyptic number.

105062640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105062640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164562384).

105062640 is an abundant number, since it is smaller than the sum of its proper divisors (224062128).

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

105062640 is a wasteful number, since it uses less digits than its factorization.

105062640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4620 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 105062640 is about 10250.0068292660. The cubic root of 105062640 is about 471.8631940967.

The spelling of 105062640 in words is "one hundred five million, sixty-two thousand, six hundred forty".