345644007 has 16 divisors (see below), whose sum is σ = 469553280. Its totient is φ = 226096992.

The previous prime is 345644003. The next prime is 345644009. The reversal of 345644007 is 700446543.

It is a happy number.

It is not a de Polignac number, because 345644007 - 2² = 345644003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345644003) 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, 112293 + ... + 115329.

It is an arithmetic number, because the mean of its divisors is an integer number (29347080).

Almost surely, 2^345644007 is an apocalyptic number.

345644007 is a deficient number, since it is larger than the sum of its proper divisors (123909273).

345644007 is a wasteful number, since it uses less digits than its factorization.

345644007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 345644007 is about 18591.5036239676. The cubic root of 345644007 is about 701.7940423070.

The spelling of 345644007 in words is "three hundred forty-five million, six hundred forty-four thousand, seven".