346428720000 has 1920 divisors, whose sum is σ = 1503202821120. Its totient is φ = 75571200000.

The previous prime is 346428719981. The next prime is 346428720007. The reversal of 346428720000 is 27824643.

346428720000 is a `hidden beast` number, since 3 + 4 + 642 + 8 + 7 + 2 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346428720007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 4173839959 + ... + 4173840041.

It is an arithmetic number, because the mean of its divisors is an integer number (782918136).

Almost surely, 2^346428720000 is an apocalyptic number.

346428720000 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 346428720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751601410560).

346428720000 is an abundant number, since it is smaller than the sum of its proper divisors (1156774101120).

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

346428720000 is a wasteful number, since it uses less digits than its factorization.

346428720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 346428720000 in words is "three hundred forty-six billion, four hundred twenty-eight million, seven hundred twenty thousand".