349690401 has 12 divisors (see below), whose sum is σ = 505270480. Its totient is φ = 233052120.

The previous prime is 349690399. The next prime is 349690417. The reversal of 349690401 is 104096943.

It is not a de Polignac number, because 349690401 - 2¹ = 349690399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349690001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51630 + ... + 58008.

Almost surely, 2^349690401 is an apocalyptic number.

It is an amenable number.

349690401 is a deficient number, since it is larger than the sum of its proper divisors (155580079).

349690401 is a wasteful number, since it uses less digits than its factorization.

349690401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476 (or 12473 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 349690401 is about 18700.0107219221. The cubic root of 349690401 is about 704.5220179413.

The spelling of 349690401 in words is "three hundred forty-nine million, six hundred ninety thousand, four hundred one".