140047904 has 48 divisors (see below), whose sum is σ = 298777248. Its totient is φ = 64361472.

The previous prime is 140047903. The next prime is 140047909. The reversal of 140047904 is 409740041.

It is a super-2 number, since 2×140047904² = 39226830829586432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140047903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20399 + ... + 26385.

It is an arithmetic number, because the mean of its divisors is an integer number (6224526).

Almost surely, 2^140047904 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 140047904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149388624).

140047904 is an abundant number, since it is smaller than the sum of its proper divisors (158729344).

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

140047904 is a wasteful number, since it uses less digits than its factorization.

140047904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6057 (or 6049 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 140047904 is about 11834.1837065342. The cubic root of 140047904 is about 519.3086275356.

Adding to 140047904 its reverse (409740041), we get a palindrome (549787945).

The spelling of 140047904 in words is "one hundred forty million, forty-seven thousand, nine hundred four".