140044784 has 20 divisors (see below), whose sum is σ = 296004120. Its totient is φ = 63656640.

The previous prime is 140044783. The next prime is 140044787. The reversal of 140044784 is 487440041.

It is a super-2 number, since 2×140044784² = 39225083051213312, 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 140044784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140044783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397679 + ... + 398030.

It is an arithmetic number, because the mean of its divisors is an integer number (14800206).

Almost surely, 2^140044784 is an apocalyptic number.

It is an amenable number.

140044784 is an abundant number, since it is smaller than the sum of its proper divisors (155959336).

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

140044784 is a wasteful number, since it uses less digits than its factorization.

140044784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795728 (or 795722 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 140044784 is about 11834.0518842871. The cubic root of 140044784 is about 519.3047711053.

The spelling of 140044784 in words is "one hundred forty million, forty-four thousand, seven hundred eighty-four".