7340856421 has 8 divisors (see below), whose sum is σ = 7442943680. Its totient is φ = 7238810592.

The previous prime is 7340856361. The next prime is 7340856461. The reversal of 7340856421 is 1246580437.

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 7340856421 - 2⁹ = 7340855909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7340856461) 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, 568786 + ... + 581548.

It is an arithmetic number, because the mean of its divisors is an integer number (930367960).

Almost surely, 2^7340856421 is an apocalyptic number.

It is an amenable number.

7340856421 is a deficient number, since it is larger than the sum of its proper divisors (102087259).

7340856421 is a wasteful number, since it uses less digits than its factorization.

7340856421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20715.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 7340856421 is about 85678.7979665915. The cubic root of 7340856421 is about 1943.4896998012.

The spelling of 7340856421 in words is "seven billion, three hundred forty million, eight hundred fifty-six thousand, four hundred twenty-one".