349903640402 has 8 divisors (see below), whose sum is σ = 539040743436. Its totient is φ = 170223392592.

The previous prime is 349903640363. The next prime is 349903640473. The reversal of 349903640402 is 204046309943.

It can be written as a sum of positive squares in 2 ways, for example, as 336108903001 + 13794737401 = 579749^2 + 117451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364213713 + ... + 2364213860.

Almost surely, 2^349903640402 is an apocalyptic number.

349903640402 is a deficient number, since it is larger than the sum of its proper divisors (189137103034).

349903640402 is a wasteful number, since it uses less digits than its factorization.

349903640402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728427612.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 349903640402 in words is "three hundred forty-nine billion, nine hundred three million, six hundred forty thousand, four hundred two".