349509430 has 32 divisors (see below), whose sum is σ = 643789440. Its totient is φ = 136581120.

The previous prime is 349509383. The next prime is 349509521. The reversal of 349509430 is 34905943.

It is a self number, because there is not a number n which added to its sum of digits gives 349509430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74350 + ... + 78910.

It is an arithmetic number, because the mean of its divisors is an integer number (20118420).

Almost surely, 2^349509430 is an apocalyptic number.

349509430 is a deficient number, since it is larger than the sum of its proper divisors (294280010).

349509430 is a wasteful number, since it uses less digits than its factorization.

349509430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 349509430 is about 18695.1713017025. The cubic root of 349509430 is about 704.4004627463.

The spelling of 349509430 in words is "three hundred forty-nine million, five hundred nine thousand, four hundred thirty".