345602401 has 4 divisors (see below), whose sum is σ = 365931972. Its totient is φ = 325272832.

The previous prime is 345602399. The next prime is 345602417. The reversal of 345602401 is 104206543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138674176 + 206928225 = 11776^2 + 14385^2 .

It is not a de Polignac number, because 345602401 - 2¹ = 345602399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345602431) 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, 10164760 + ... + 10164793.

It is an arithmetic number, because the mean of its divisors is an integer number (91482993).

Almost surely, 2^345602401 is an apocalyptic number.

It is an amenable number.

345602401 is a deficient number, since it is larger than the sum of its proper divisors (20329571).

345602401 is a wasteful number, since it uses less digits than its factorization.

345602401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20329570.

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

The square root of 345602401 is about 18590.3846383016. The cubic root of 345602401 is about 701.7658822985.

Adding to 345602401 its reverse (104206543), we get a palindrome (449808944).

The spelling of 345602401 in words is "three hundred forty-five million, six hundred two thousand, four hundred one".