345440377 has 16 divisors (see below), whose sum is σ = 359699200. Its totient is φ = 331568640.

The previous prime is 345440353. The next prime is 345440383. The reversal of 345440377 is 773044543.

It is a cyclic number.

It is not a de Polignac number, because 345440377 - 2¹⁵ = 345407609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345440327) 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, 467074 + ... + 467812.

It is an arithmetic number, because the mean of its divisors is an integer number (22481200).

Almost surely, 2^345440377 is an apocalyptic number.

It is an amenable number.

345440377 is a deficient number, since it is larger than the sum of its proper divisors (14258823).

345440377 is an equidigital number, since it uses as much as digits as its factorization.

345440377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 141120, while the sum is 37.

The square root of 345440377 is about 18586.0263908131. The cubic root of 345440377 is about 701.6561987544.

The spelling of 345440377 in words is "three hundred forty-five million, four hundred forty thousand, three hundred seventy-seven".