343487390400 has 1344 divisors, whose sum is σ = 1611950161920. Its totient is φ = 69050880000.

The previous prime is 343487390317. The next prime is 343487390437. The reversal of 343487390400 is 4093784343.

343487390400 is a `hidden beast` number, since 3 + 43 + 487 + 3 + 90 + 40 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 103116735 + ... + 103120065.

It is an arithmetic number, because the mean of its divisors is an integer number (1199367680).

Almost surely, 2^343487390400 is an apocalyptic number.

343487390400 is a gapful number since it is divisible by the number (30) 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 343487390400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805975080960).

343487390400 is an abundant number, since it is smaller than the sum of its proper divisors (1268462771520).

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

343487390400 is a wasteful number, since it uses less digits than its factorization.

343487390400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 343487390400 in words is "three hundred forty-three billion, four hundred eighty-seven million, three hundred ninety thousand, four hundred".