345116649 has 8 divisors (see below), whose sum is σ = 472592320. Its totient is φ = 223859376.

The previous prime is 345116647. The next prime is 345116657. The reversal of 345116649 is 946611543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345116649 - 2¹ = 345116647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345116647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554469 + ... + 1554690.

It is an arithmetic number, because the mean of its divisors is an integer number (59074040).

Almost surely, 2^345116649 is an apocalyptic number.

It is an amenable number.

345116649 is a deficient number, since it is larger than the sum of its proper divisors (127475671).

345116649 is a wasteful number, since it uses less digits than its factorization.

345116649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109199.

The product of its digits is 77760, while the sum is 39.

The square root of 345116649 is about 18577.3154411503. The cubic root of 345116649 is about 701.4369455285.

It can be divided in two parts, 3451 and 16649, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 345116649 in words is "three hundred forty-five million, one hundred sixteen thousand, six hundred forty-nine".