349857007458 has 128 divisors (see below), whose sum is σ = 850508611584. Its totient is φ = 93843878400.

The previous prime is 349857007457. The next prime is 349857007477. The reversal of 349857007458 is 854700758943.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (349857007453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5767635 + ... + 5827977.

It is an arithmetic number, because the mean of its divisors is an integer number (6644598528).

Almost surely, 2^349857007458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349857007458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425254305792).

349857007458 is an abundant number, since it is smaller than the sum of its proper divisors (500651604126).

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

349857007458 is a wasteful number, since it uses less digits than its factorization.

349857007458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60520.

The product of its (nonzero) digits is 33868800, while the sum is 60.

The spelling of 349857007458 in words is "three hundred forty-nine billion, eight hundred fifty-seven million, seven thousand, four hundred fifty-eight".