140644722 has 64 divisors (see below), whose sum is σ = 301397760. Its totient is φ = 43680000.

The previous prime is 140644709. The next prime is 140644741. The reversal of 140644722 is 227446041.

It is a self number, because there is not a number n which added to its sum of digits gives 140644722.

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, 931347 + ... + 931497.

It is an arithmetic number, because the mean of its divisors is an integer number (4709340).

Almost surely, 2^140644722 is an apocalyptic number.

140644722 is an abundant number, since it is smaller than the sum of its proper divisors (160753038).

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

140644722 is a wasteful number, since it uses less digits than its factorization.

140644722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 140644722 is about 11859.3727490116. The cubic root of 140644722 is about 520.0452647974.

The spelling of 140644722 in words is "one hundred forty million, six hundred forty-four thousand, seven hundred twenty-two".