349554631 has 4 divisors (see below), whose sum is σ = 351575352. Its totient is φ = 347533912.

The previous prime is 349554613. The next prime is 349554649. The reversal of 349554631 is 136455943.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (349554613) and next prime (349554649).

It is a cyclic number.

It is not a de Polignac number, because 349554631 - 2⁵ = 349554599 is a prime.

It is a super-2 number, since 2×349554631² = 244376880107092322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349554431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010101 + ... + 1010446.

It is an arithmetic number, because the mean of its divisors is an integer number (87893838).

Almost surely, 2^349554631 is an apocalyptic number.

349554631 is a deficient number, since it is larger than the sum of its proper divisors (2020721).

349554631 is a wasteful number, since it uses less digits than its factorization.

349554631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020720.

The product of its digits is 194400, while the sum is 40.

The square root of 349554631 is about 18696.3801576669. The cubic root of 349554631 is about 704.4308274329.

The spelling of 349554631 in words is "three hundred forty-nine million, five hundred fifty-four thousand, six hundred thirty-one".