345037407 has 16 divisors (see below), whose sum is σ = 540478848. Its totient is φ = 193027680.

The previous prime is 345037339. The next prime is 345037453. The reversal of 345037407 is 704730543.

It is not a de Polignac number, because 345037407 - 2¹⁰ = 345036383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345037307) 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, 401713 + ... + 402570.

It is an arithmetic number, because the mean of its divisors is an integer number (33779928).

Almost surely, 2^345037407 is an apocalyptic number.

345037407 is a deficient number, since it is larger than the sum of its proper divisors (195441441).

345037407 is a wasteful number, since it uses less digits than its factorization.

345037407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804310.

The product of its (nonzero) digits is 35280, while the sum is 33.

The square root of 345037407 is about 18575.1825563035. The cubic root of 345037407 is about 701.3832559317.

The spelling of 345037407 in words is "three hundred forty-five million, thirty-seven thousand, four hundred seven".