349557078 has 16 divisors (see below), whose sum is σ = 752892336. Its totient is φ = 107556000.

The previous prime is 349557037. The next prime is 349557119. The reversal of 349557078 is 870755943.

It is an interprime number because it is at equal distance from previous prime (349557037) and next prime (349557119).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240673 + ... + 2240828.

It is an arithmetic number, because the mean of its divisors is an integer number (47055771).

Almost surely, 2^349557078 is an apocalyptic number.

349557078 is an abundant number, since it is smaller than the sum of its proper divisors (403335258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349557078 is a wasteful number, since it uses less digits than its factorization.

349557078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481519.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The square root of 349557078 is about 18696.4455980274. The cubic root of 349557078 is about 704.4324711799.

The spelling of 349557078 in words is "three hundred forty-nine million, five hundred fifty-seven thousand, seventy-eight".