349532426880 has 1024 divisors, whose sum is σ = 1603929600000. Its totient is φ = 69860081664.

The previous prime is 349532426869. The next prime is 349532426921. The reversal of 349532426880 is 88624235943.

349532426880 is a `hidden beast` number, since 3 + 4 + 9 + 532 + 4 + 26 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 29871271 + ... + 29882969.

It is an arithmetic number, because the mean of its divisors is an integer number (1566337500).

Almost surely, 2^349532426880 is an apocalyptic number.

349532426880 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 349532426880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801964800000).

349532426880 is an abundant number, since it is smaller than the sum of its proper divisors (1254397173120).

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

349532426880 is a wasteful number, since it uses less digits than its factorization.

349532426880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11766 (or 11748 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 349532426880 in words is "three hundred forty-nine billion, five hundred thirty-two million, four hundred twenty-six thousand, eight hundred eighty".