355920340 has 12 divisors (see below), whose sum is σ = 747432756. Its totient is φ = 142368128.

The previous prime is 355920307. The next prime is 355920349. The reversal of 355920340 is 43029553.

It can be written as a sum of positive squares in 2 ways, for example, as 200618896 + 155301444 = 14164^2 + 12462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355920349) 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, 8897989 + ... + 8898028.

It is an arithmetic number, because the mean of its divisors is an integer number (62286063).

Almost surely, 2^355920340 is an apocalyptic number.

It is an amenable number.

355920340 is an abundant number, since it is smaller than the sum of its proper divisors (391512416).

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

355920340 is a wasteful number, since it uses less digits than its factorization.

355920340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17796026 (or 17796024 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 355920340 is about 18865.8511602313. The cubic root of 355920340 is about 708.6812391365.

Adding to 355920340 its reverse (43029553), we get a palindrome (398949893).

The spelling of 355920340 in words is "three hundred fifty-five million, nine hundred twenty thousand, three hundred forty".