343898021376 has 240 divisors, whose sum is σ = 1221555919584. Its totient is φ = 90698268672.

The previous prime is 343898021351. The next prime is 343898021377. The reversal of 343898021376 is 673120898343.

343898021376 is a `hidden beast` number, since 343 + 8 + 9 + 80 + 213 + 7 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343898021377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9270 + ... + 829386.

Almost surely, 2^343898021376 is an apocalyptic number.

343898021376 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343898021376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610777959792).

343898021376 is an abundant number, since it is smaller than the sum of its proper divisors (877657898208).

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

343898021376 is a wasteful number, since it uses less digits than its factorization.

343898021376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820161 (or 820142 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 343898021376 in words is "three hundred forty-three billion, eight hundred ninety-eight million, twenty-one thousand, three hundred seventy-six".