140040004 has 24 divisors (see below), whose sum is σ = 264441240. Its totient is φ = 64506624.

The previous prime is 140040001. The next prime is 140040029. The reversal of 140040004 is 400040041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3617604 + 136422400 = 1902^2 + 11680^2 .

It is a super-2 number, since 2×140040004² = 39222405440640032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (140040001) 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, 27222 + ... + 31954.

It is an arithmetic number, because the mean of its divisors is an integer number (11018385).

Almost surely, 2^140040004 is an apocalyptic number.

It is an amenable number.

140040004 is a deficient number, since it is larger than the sum of its proper divisors (124401236).

140040004 is a wasteful number, since it uses less digits than its factorization.

140040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319 (or 5317 counting only the distinct ones).

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

The square root of 140040004 is about 11833.8499229963. The cubic root of 140040004 is about 519.2988627452.

Adding to 140040004 its reverse (400040041), we get a palindrome (540080045).

The spelling of 140040004 in words is "one hundred forty million, forty thousand, four".