349809315426 has 24 divisors (see below), whose sum is σ = 758042336844. Its totient is φ = 116584312320.

The previous prime is 349809315407. The next prime is 349809315461. The reversal of 349809315426 is 624513908943.

349809315426 is a `hidden beast` number, since 3 + 4 + 9 + 8 + 0 + 93 + 1 + 542 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 314105323401 + 35703992025 = 560451^2 + 188955^2 .

It is a super-2 number, since 2×349809315426² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1451055 + ... + 1674866.

Almost surely, 2^349809315426 is an apocalyptic number.

349809315426 is an abundant number, since it is smaller than the sum of its proper divisors (408233021418).

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

349809315426 is a wasteful number, since it uses less digits than its factorization.

349809315426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132146 (or 3132143 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 349809315426 in words is "three hundred forty-nine billion, eight hundred nine million, three hundred fifteen thousand, four hundred twenty-six".