349926740 has 12 divisors (see below), whose sum is σ = 734846196. Its totient is φ = 139970688.

The previous prime is 349926739. The next prime is 349926749. The reversal of 349926740 is 47629943.

It can be written as a sum of positive squares in 2 ways, for example, as 55323844 + 294602896 = 7438^2 + 17164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 349926691 and 349926700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349926749) 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, 8748149 + ... + 8748188.

It is an arithmetic number, because the mean of its divisors is an integer number (61237183).

Almost surely, 2^349926740 is an apocalyptic number.

It is an amenable number.

349926740 is an abundant number, since it is smaller than the sum of its proper divisors (384919456).

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

349926740 is a wasteful number, since it uses less digits than its factorization.

349926740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496346 (or 17496344 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 349926740 is about 18706.3288755437. The cubic root of 349926740 is about 704.6806997654.

The spelling of 349926740 in words is "three hundred forty-nine million, nine hundred twenty-six thousand, seven hundred forty".