345272448 has 128 divisors (see below), whose sum is σ = 979542720. Its totient is φ = 107380736.

The previous prime is 345272441. The next prime is 345272453. The reversal of 345272448 is 844272543.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (345272441) 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, 1481740 + ... + 1481972.

Almost surely, 2^345272448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345272448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489771360).

345272448 is an abundant number, since it is smaller than the sum of its proper divisors (634270272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345272448 is a wasteful number, since it uses less digits than its factorization.

345272448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 482 counting only the distinct ones).

The product of its digits is 215040, while the sum is 39.

The square root of 345272448 is about 18581.5082272672. The cubic root of 345272448 is about 701.5424815689.

The spelling of 345272448 in words is "three hundred forty-five million, two hundred seventy-two thousand, four hundred forty-eight".