344128995 has 24 divisors (see below), whose sum is σ = 681703776. Its totient is φ = 157315968.

The previous prime is 344128991. The next prime is 344128997. The reversal of 344128995 is 599821443.

It is not a de Polignac number, because 344128995 - 2² = 344128991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 344128995.

It is not an unprimeable number, because it can be changed into a prime (344128991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545922 + ... + 546551.

It is an arithmetic number, because the mean of its divisors is an integer number (28404324).

Almost surely, 2^344128995 is an apocalyptic number.

344128995 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

344128995 is a deficient number, since it is larger than the sum of its proper divisors (337574781).

344128995 is a wasteful number, since it uses less digits than its factorization.

344128995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092491 (or 1092488 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 344128995 is about 18550.7141371970. The cubic root of 344128995 is about 700.7671826891.

The spelling of 344128995 in words is "three hundred forty-four million, one hundred twenty-eight thousand, nine hundred ninety-five".