349372340 has 12 divisors (see below), whose sum is σ = 733681956. Its totient is φ = 139748928.

The previous prime is 349372337. The next prime is 349372349. The reversal of 349372340 is 43273943.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136562596 + 212809744 = 11686^2 + 14588^2 .

It is a super-2 number, since 2×349372340² = 244122063914151200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 349372340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349372349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8734289 + ... + 8734328.

It is an arithmetic number, because the mean of its divisors is an integer number (61140163).

Almost surely, 2^349372340 is an apocalyptic number.

It is an amenable number.

349372340 is an abundant number, since it is smaller than the sum of its proper divisors (384309616).

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

349372340 is a wasteful number, since it uses less digits than its factorization.

349372340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17468626 (or 17468624 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 349372340 is about 18691.5044873333. The cubic root of 349372340 is about 704.3083537506.

The spelling of 349372340 in words is "three hundred forty-nine million, three hundred seventy-two thousand, three hundred forty".