7340420985 has 32 divisors (see below), whose sum is σ = 12355632000. Its totient is φ = 3715815936.

The previous prime is 7340420929. The next prime is 7340420987. The reversal of 7340420985 is 5890240437.

It is not a de Polignac number, because 7340420985 - 2²¹ = 7338323833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7340420987) 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, 117340 + ... + 168669.

It is an arithmetic number, because the mean of its divisors is an integer number (386113500).

Almost surely, 2^7340420985 is an apocalyptic number.

It is an amenable number.

7340420985 is a deficient number, since it is larger than the sum of its proper divisors (5015211015).

7340420985 is a wasteful number, since it uses less digits than its factorization.

7340420985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286105.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 7340420985 is about 85676.2568335008. The cubic root of 7340420985 is about 1943.4512718546.

The spelling of 7340420985 in words is "seven billion, three hundred forty million, four hundred twenty thousand, nine hundred eighty-five".