343803905472 has 28 divisors (see below), whose sum is σ = 909647833736. Its totient is φ = 114601301760.

The previous prime is 343803905449. The next prime is 343803905479. The reversal of 343803905472 is 274509308343.

It is a super-2 number, since 2×343803905472² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343803905479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895322479 + ... + 895322862.

Almost surely, 2^343803905472 is an apocalyptic number.

343803905472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

343803905472 is an abundant number, since it is smaller than the sum of its proper divisors (565843928264).

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

343803905472 is a wasteful number, since it uses less digits than its factorization.

343803905472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790645356 (or 1790645346 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 343803905472 in words is "three hundred forty-three billion, eight hundred three million, nine hundred five thousand, four hundred seventy-two".