140004040 has 32 divisors (see below), whose sum is σ = 343647360. Its totient is φ = 50910400.

The previous prime is 140004019. The next prime is 140004047. The reversal of 140004040 is 40400041.

It is a happy number.

It is a super-2 number, since 2×140004040² = 39202262432643200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140004040.

It is not an unprimeable number, because it can be changed into a prime (140004047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158656 + ... + 159535.

It is an arithmetic number, because the mean of its divisors is an integer number (10738980).

Almost surely, 2^140004040 is an apocalyptic number.

140004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140004040 is an abundant number, since it is smaller than the sum of its proper divisors (203643320).

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

140004040 is a wasteful number, since it uses less digits than its factorization.

140004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318213 (or 318209 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 140004040 is about 11832.3302861271. The cubic root of 140004040 is about 519.2544048219.

Adding to 140004040 its reverse (40400041), we get a palindrome (180404081).

The spelling of 140004040 in words is "one hundred forty million, four thousand, forty".