346540388 has 6 divisors (see below), whose sum is σ = 606445686. Its totient is φ = 173270192.

The previous prime is 346540387. The next prime is 346540423. The reversal of 346540388 is 883045643.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 175244644 + 171295744 = 13238^2 + 13088^2 .

It is not an unprimeable number, because it can be changed into a prime (346540387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43317545 + ... + 43317552.

It is an arithmetic number, because the mean of its divisors is an integer number (101074281).

Almost surely, 2^346540388 is an apocalyptic number.

It is an amenable number.

346540388 is a deficient number, since it is larger than the sum of its proper divisors (259905298).

346540388 is a wasteful number, since it uses less digits than its factorization.

346540388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86635101 (or 86635099 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 346540388 is about 18615.5952899713. The cubic root of 346540388 is about 702.4001879444.

The spelling of 346540388 in words is "three hundred forty-six million, five hundred forty thousand, three hundred eighty-eight".