344220213554 has 32 divisors (see below), whose sum is σ = 591144048000. Its totient is φ = 147260131200.

The previous prime is 344220213539. The next prime is 344220213607. The reversal of 344220213554 is 455312022443.

It is a happy number.

It is a super-2 number, since 2×344220213554² (a number of 24 digits) contains 22 as substring.

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, 18957272 + ... + 18975420.

It is an arithmetic number, because the mean of its divisors is an integer number (18473251500).

Almost surely, 2^344220213554 is an apocalyptic number.

344220213554 is a deficient number, since it is larger than the sum of its proper divisors (246923834446).

344220213554 is a wasteful number, since it uses less digits than its factorization.

344220213554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20498.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 344220213554 its reverse (455312022443), we get a palindrome (799532235997).

The spelling of 344220213554 in words is "three hundred forty-four billion, two hundred twenty million, two hundred thirteen thousand, five hundred fifty-four".