356421067440 has 80 divisors (see below), whose sum is σ = 1105643520000. Its totient is φ = 94982116096.

The previous prime is 356421067421. The next prime is 356421067487. The reversal of 356421067440 is 44760124653.

It is a happy number.

356421067440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 356421067392 and 356421067401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135600 + ... + 855119.

It is an arithmetic number, because the mean of its divisors is an integer number (13820544000).

Almost surely, 2^356421067440 is an apocalyptic number.

356421067440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

356421067440 is an abundant number, since it is smaller than the sum of its proper divisors (749222452560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

356421067440 is a wasteful number, since it uses less digits than its factorization.

356421067440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992234 (or 992228 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 356421067440 in words is "three hundred fifty-six billion, four hundred twenty-one million, sixty-seven thousand, four hundred forty".