349520578 has 16 divisors (see below), whose sum is σ = 605587104. Its totient is φ = 149527360.

The previous prime is 349520573. The next prime is 349520597. The reversal of 349520578 is 875025943.

It is not an unprimeable number, because it can be changed into a prime (349520573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466900 + ... + 467647.

It is an arithmetic number, because the mean of its divisors is an integer number (37849194).

Almost surely, 2^349520578 is an apocalyptic number.

349520578 is a deficient number, since it is larger than the sum of its proper divisors (256066526).

349520578 is a wasteful number, since it uses less digits than its factorization.

349520578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934577.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 349520578 is about 18695.4694511799. The cubic root of 349520578 is about 704.4079518842.

The spelling of 349520578 in words is "three hundred forty-nine million, five hundred twenty thousand, five hundred seventy-eight".