345431401 has 16 divisors (see below), whose sum is σ = 405865728. Its totient is φ = 287884800.

The previous prime is 345431399. The next prime is 345431407. The reversal of 345431401 is 104134543.

It is not a de Polignac number, because 345431401 - 2¹ = 345431399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345431407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31521 + ... + 41041.

It is an arithmetic number, because the mean of its divisors is an integer number (25366608).

Almost surely, 2^345431401 is an apocalyptic number.

It is an amenable number.

345431401 is a deficient number, since it is larger than the sum of its proper divisors (60434327).

345431401 is an equidigital number, since it uses as much as digits as its factorization.

345431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 345431401 is about 18585.7849175116. The cubic root of 345431401 is about 701.6501213713.

Adding to 345431401 its reverse (104134543), we get a palindrome (449565944).

The spelling of 345431401 in words is "three hundred forty-five million, four hundred thirty-one thousand, four hundred one".