340888949 has 2 divisors, whose sum is σ = 340888950. Its totient is φ = 340888948.

The previous prime is 340888931. The next prime is 340888973. The reversal of 340888949 is 949888043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207648100 + 133240849 = 14410^2 + 11543^2 .

It is a cyclic number.

It is not a de Polignac number, because 340888949 - 2¹² = 340884853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340888949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340888349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170444474 + 170444475.

It is an arithmetic number, because the mean of its divisors is an integer number (170444475).

Almost surely, 2^340888949 is an apocalyptic number.

It is an amenable number.

340888949 is a deficient number, since it is larger than the sum of its proper divisors (1).

340888949 is an equidigital number, since it uses as much as digits as its factorization.

340888949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 340888949 is about 18463.1781933664. The cubic root of 340888949 is about 698.5609545519.

The spelling of 340888949 in words is "three hundred forty million, eight hundred eighty-eight thousand, nine hundred forty-nine".