340654057 has 2 divisors, whose sum is σ = 340654058. Its totient is φ = 340654056.

The previous prime is 340654049. The next prime is 340654087. The reversal of 340654057 is 750456043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194993296 + 145660761 = 13964^2 + 12069^2 .

It is a cyclic number.

It is not a de Polignac number, because 340654057 - 2³ = 340654049 is a prime.

It is not a weakly prime, because it can be changed into another prime (340654087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170327028 + 170327029.

It is an arithmetic number, because the mean of its divisors is an integer number (170327029).

Almost surely, 2^340654057 is an apocalyptic number.

It is an amenable number.

340654057 is a deficient number, since it is larger than the sum of its proper divisors (1).

340654057 is an equidigital number, since it uses as much as digits as its factorization.

340654057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 340654057 is about 18456.8160038507. The cubic root of 340654057 is about 698.4004681892.

The spelling of 340654057 in words is "three hundred forty million, six hundred fifty-four thousand, fifty-seven".