140002404 has 12 divisors (see below), whose sum is σ = 326672304. Its totient is φ = 46667464.

The previous prime is 140002399. The next prime is 140002409. The reversal of 140002404 is 404200041.

It is an interprime number because it is at equal distance from previous prime (140002399) and next prime (140002409).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (140002409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5833422 + ... + 5833445.

It is an arithmetic number, because the mean of its divisors is an integer number (27222692).

Almost surely, 2^140002404 is an apocalyptic number.

It is an amenable number.

140002404 is an abundant number, since it is smaller than the sum of its proper divisors (186669900).

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

140002404 is a wasteful number, since it uses less digits than its factorization.

140002404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11666874 (or 11666872 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 140002404 is about 11832.2611533046. The cubic root of 140002404 is about 519.2523822528.

Adding to 140002404 its reverse (404200041), we get a palindrome (544202445).

The spelling of 140002404 in words is "one hundred forty million, two thousand, four hundred four".