349718502 has 64 divisors (see below), whose sum is σ = 832794624. Its totient is φ = 95800320.

The previous prime is 349718461. The next prime is 349718507. The reversal of 349718502 is 205817943.

It is a super-2 number, since 2×349718502² = 244606061282248008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349718507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145938 + ... + 148314.

It is an arithmetic number, because the mean of its divisors is an integer number (13012416).

Almost surely, 2^349718502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349718502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416397312).

349718502 is an abundant number, since it is smaller than the sum of its proper divisors (483076122).

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

349718502 is a wasteful number, since it uses less digits than its factorization.

349718502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 349718502 is about 18700.7620700334. The cubic root of 349718502 is about 704.5408891513.

The spelling of 349718502 in words is "three hundred forty-nine million, seven hundred eighteen thousand, five hundred two".