349729546140 has 72 divisors (see below), whose sum is σ = 1142449858368. Its totient is φ = 86087272320.

The previous prime is 349729546043. The next prime is 349729546141. The reversal of 349729546140 is 41645927943.

349729546140 is a `hidden beast` number, since 3 + 4 + 97 + 2 + 9 + 546 + 1 + 4 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349729546141) 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, 74726196 + ... + 74730875.

It is an arithmetic number, because the mean of its divisors is an integer number (15867359144).

Almost surely, 2^349729546140 is an apocalyptic number.

349729546140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

349729546140 is an abundant number, since it is smaller than the sum of its proper divisors (792720312228).

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

349729546140 is a wasteful number, since it uses less digits than its factorization.

349729546140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149457099 (or 149457094 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 349729546140 in words is "three hundred forty-nine billion, seven hundred twenty-nine million, five hundred forty-six thousand, one hundred forty".