140804436 has 48 divisors (see below), whose sum is σ = 344752128. Its totient is φ = 44642400.

The previous prime is 140804423. The next prime is 140804471. The reversal of 140804436 is 634408041.

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, 51381 + ... + 54051.

It is an arithmetic number, because the mean of its divisors is an integer number (7182336).

Almost surely, 2^140804436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140804436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172376064).

140804436 is an abundant number, since it is smaller than the sum of its proper divisors (203947692).

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

140804436 is a wasteful number, since it uses less digits than its factorization.

140804436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 140804436 is about 11866.1044997927. The cubic root of 140804436 is about 520.2420421526.

The spelling of 140804436 in words is "one hundred forty million, eight hundred four thousand, four hundred thirty-six".