345388430407 has 4 divisors (see below), whose sum is σ = 345444117480. Its totient is φ = 345332743336.

The previous prime is 345388430399. The next prime is 345388430461. The reversal of 345388430407 is 704034883543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704034883543 = 17 ⋅41413816679.

It is a cyclic number.

It is not a de Polignac number, because 345388430407 - 2³ = 345388430399 is a prime.

It is a super-2 number, since 2×345388430407² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345388431407) 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, 27834232 + ... + 27846637.

It is an arithmetic number, because the mean of its divisors is an integer number (86361029370).

Almost surely, 2^345388430407 is an apocalyptic number.

345388430407 is a deficient number, since it is larger than the sum of its proper divisors (55687073).

345388430407 is an equidigital number, since it uses as much as digits as its factorization.

345388430407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55687072.

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 345388430407 in words is "three hundred forty-five billion, three hundred eighty-eight million, four hundred thirty thousand, four hundred seven".