7240342005 has 32 divisors (see below), whose sum is σ = 13861854720. Its totient is φ = 3564475200.

The previous prime is 7240342001. The next prime is 7240342013. The reversal of 7240342005 is 5002430427.

It is not a de Polignac number, because 7240342005 - 2² = 7240342001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 7240342005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240342001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2061021 + ... + 2064530.

It is an arithmetic number, because the mean of its divisors is an integer number (433182960).

Almost surely, 2^7240342005 is an apocalyptic number.

It is an amenable number.

7240342005 is a deficient number, since it is larger than the sum of its proper divisors (6621512715).

7240342005 is a wasteful number, since it uses less digits than its factorization.

7240342005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125578 (or 4125572 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 7240342005 is about 85090.1992299936. The cubic root of 7240342005 is about 1934.5785152531.

The spelling of 7240342005 in words is "seven billion, two hundred forty million, three hundred forty-two thousand, five".