1240004440137 has 8 divisors (see below), whose sum is σ = 1653400816704. Its totient is φ = 826638845168.

The previous prime is 1240004440133. The next prime is 1240004440163. The reversal of 1240004440137 is 7310444000421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240004440137 - 2² = 1240004440133 is a prime.

It is a super-2 number, since 2×1240004440137² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240004440133) 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, 7601238 + ... + 7762655.

It is an arithmetic number, because the mean of its divisors is an integer number (206675102088).

Almost surely, 2^{1240004440137} is an apocalyptic number.

It is an amenable number.

1240004440137 is a deficient number, since it is larger than the sum of its proper divisors (413396376567).

1240004440137 is a wasteful number, since it uses less digits than its factorization.

1240004440137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15390799.

The product of its (nonzero) digits is 10752, while the sum is 30.

Adding to 1240004440137 its reverse (7310444000421), we get a palindrome (8550448440558).

The spelling of 1240004440137 in words is "one trillion, two hundred forty billion, four million, four hundred forty thousand, one hundred thirty-seven".