140054442 has 64 divisors (see below), whose sum is σ = 317761920. Its totient is φ = 40780800.

The previous prime is 140054437. The next prime is 140054443. The reversal of 140054442 is 244450041.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (140054443) 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 31 ways as a sum of consecutive naturals, for example, 197184 + ... + 197892.

It is an arithmetic number, because the mean of its divisors is an integer number (4965030).

Almost surely, 2^140054442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140054442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158880960).

140054442 is an abundant number, since it is smaller than the sum of its proper divisors (177707478).

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

140054442 is a wasteful number, since it uses less digits than its factorization.

140054442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 140054442 is about 11834.4599369806. The cubic root of 140054442 is about 519.3167085490.

The spelling of 140054442 in words is "one hundred forty million, fifty-four thousand, four hundred forty-two".