349791472 has 20 divisors (see below), whose sum is σ = 687007120. Its totient is φ = 172499328.

The previous prime is 349791461. The next prime is 349791487. The reversal of 349791472 is 274197943.

It is a congruent number.

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, 148572 + ... + 150907.

It is an arithmetic number, because the mean of its divisors is an integer number (34350356).

Almost surely, 2^349791472 is an apocalyptic number.

It is an amenable number.

349791472 is a deficient number, since it is larger than the sum of its proper divisors (337215648).

349791472 is a wasteful number, since it uses less digits than its factorization.

349791472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299560 (or 299554 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 349791472 is about 18702.7129582850. The cubic root of 349791472 is about 704.5898873914.

The spelling of 349791472 in words is "three hundred forty-nine million, seven hundred ninety-one thousand, four hundred seventy-two".