349786534 has 4 divisors (see below), whose sum is σ = 524679804. Its totient is φ = 174893266.

The previous prime is 349786529. The next prime is 349786537. The reversal of 349786534 is 435687943.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349786537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87446632 + ... + 87446635.

It is an arithmetic number, because the mean of its divisors is an integer number (131169951).

Almost surely, 2^349786534 is an apocalyptic number.

349786534 is a deficient number, since it is larger than the sum of its proper divisors (174893270).

349786534 is a wasteful number, since it uses less digits than its factorization.

349786534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174893269.

The product of its digits is 2177280, while the sum is 49.

The square root of 349786534 is about 18702.5809448857. The cubic root of 349786534 is about 704.5865718148.

The spelling of 349786534 in words is "three hundred forty-nine million, seven hundred eighty-six thousand, five hundred thirty-four".