345253412 has 72 divisors (see below), whose sum is σ = 726703488. Its totient is φ = 143035200.

The previous prime is 345253411. The next prime is 345253423. The reversal of 345253412 is 214352543.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (345253411) 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, 800837 + ... + 801267.

It is an arithmetic number, because the mean of its divisors is an integer number (10093104).

Almost surely, 2^345253412 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 345253412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363351744).

345253412 is an abundant number, since it is smaller than the sum of its proper divisors (381450076).

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

345253412 is a wasteful number, since it uses less digits than its factorization.

345253412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 568 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 345253412 is about 18580.9959905275. The cubic root of 345253412 is about 701.5295885544.

The spelling of 345253412 in words is "three hundred forty-five million, two hundred fifty-three thousand, four hundred twelve".