340304779 has 4 divisors (see below), whose sum is σ = 340769776. Its totient is φ = 339839784.

The previous prime is 340304771. The next prime is 340304813. The reversal of 340304779 is 977403043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977403043 = 283 ⋅3453721.

It is a cyclic number.

It is not a de Polignac number, because 340304779 - 2³ = 340304771 is a prime.

It is a super-2 number, since 2×340304779² = 231614685220477682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340304771) 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, 231399 + ... + 232864.

It is an arithmetic number, because the mean of its divisors is an integer number (85192444).

Almost surely, 2^340304779 is an apocalyptic number.

340304779 is a deficient number, since it is larger than the sum of its proper divisors (464997).

340304779 is an equidigital number, since it uses as much as digits as its factorization.

340304779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464996.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 340304779 is about 18447.3515443274. The cubic root of 340304779 is about 698.1616928768.

It can be divided in two parts, 34030 and 4779, that added together give a square (38809 = 197²).

The spelling of 340304779 in words is "three hundred forty million, three hundred four thousand, seven hundred seventy-nine".