355806340 has 12 divisors (see below), whose sum is σ = 747193356. Its totient is φ = 142322528.

The previous prime is 355806329. The next prime is 355806371. The reversal of 355806340 is 43608553.

It can be written as a sum of positive squares in 2 ways, for example, as 59691076 + 296115264 = 7726^2 + 17208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 355806296 and 355806305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8895139 + ... + 8895178.

It is an arithmetic number, because the mean of its divisors is an integer number (62266113).

Almost surely, 2^355806340 is an apocalyptic number.

It is an amenable number.

355806340 is an abundant number, since it is smaller than the sum of its proper divisors (391387016).

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

355806340 is a wasteful number, since it uses less digits than its factorization.

355806340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17790326 (or 17790324 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 355806340 is about 18862.8295862524. The cubic root of 355806340 is about 708.6055683761.

The spelling of 355806340 in words is "three hundred fifty-five million, eight hundred six thousand, three hundred forty".