343388427 has 4 divisors (see below), whose sum is σ = 457851240. Its totient is φ = 228925616.

The previous prime is 343388377. The next prime is 343388443. The reversal of 343388427 is 724883343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724883343 = 3 ⋅241627781.

It is a cyclic number.

It is not a de Polignac number, because 343388427 - 2⁷ = 343388299 is a prime.

It is a super-2 number, since 2×343388427² = 235831223595068658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343388327) 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, 57231402 + ... + 57231407.

It is an arithmetic number, because the mean of its divisors is an integer number (114462810).

Almost surely, 2^343388427 is an apocalyptic number.

343388427 is a deficient number, since it is larger than the sum of its proper divisors (114462813).

343388427 is a wasteful number, since it uses less digits than its factorization.

343388427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114462812.

The product of its digits is 387072, while the sum is 42.

The square root of 343388427 is about 18530.7427535973. The cubic root of 343388427 is about 700.2641363733.

It can be divided in two parts, 3 and 43388427, that multiplied together give a square (130165281 = 11409²).

The spelling of 343388427 in words is "three hundred forty-three million, three hundred eighty-eight thousand, four hundred twenty-seven".