140404400 has 30 divisors (see below), whose sum is σ = 337322532. Its totient is φ = 56161600.

The previous prime is 140404393. The next prime is 140404403. The reversal of 140404400 is 4404041.

It is not an unprimeable number, because it can be changed into a prime (140404403) 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 5 ways as a sum of consecutive naturals, for example, 175106 + ... + 175905.

Almost surely, 2^140404400 is an apocalyptic number.

140404400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140404400 is an abundant number, since it is smaller than the sum of its proper divisors (196918132).

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

140404400 is a wasteful number, since it uses less digits than its factorization.

140404400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351029 (or 351018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 140404400 is about 11849.2362623082. The cubic root of 140404400 is about 519.7488925667.

Adding to 140404400 its reverse (4404041), we get a palindrome (144808441).

The spelling of 140404400 in words is "one hundred forty million, four hundred four thousand, four hundred".