105640722 has 48 divisors (see below), whose sum is σ = 262847520. Its totient is φ = 30326400.

The previous prime is 105640699. The next prime is 105640751. The reversal of 105640722 is 227046501.

105640722 is a `hidden beast` number, since 10 + 5 + 640 + 7 + 2 + 2 = 666.

It is a super-2 number, since 2×105640722² = 22319924289362568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10279 + ... + 17802.

It is an arithmetic number, because the mean of its divisors is an integer number (5475990).

Almost surely, 2^105640722 is an apocalyptic number.

105640722 is an abundant number, since it is smaller than the sum of its proper divisors (157206798).

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

105640722 is a wasteful number, since it uses less digits than its factorization.

105640722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28119 (or 28116 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 105640722 is about 10278.1672490770. The cubic root of 105640722 is about 472.7270496928.

The spelling of 105640722 in words is "one hundred five million, six hundred forty thousand, seven hundred twenty-two".