343564494 has 96 divisors (see below), whose sum is σ = 860832000. Its totient is φ = 89496576.

The previous prime is 343564471. The next prime is 343564523. The reversal of 343564494 is 494465343.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 688257 + ... + 688755.

It is an arithmetic number, because the mean of its divisors is an integer number (8967000).

Almost surely, 2^343564494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343564494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430416000).

343564494 is an abundant number, since it is smaller than the sum of its proper divisors (517267506).

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

343564494 is a wasteful number, since it uses less digits than its factorization.

343564494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 621 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The square root of 343564494 is about 18535.4928178347. The cubic root of 343564494 is about 700.3837990543.

The spelling of 343564494 in words is "three hundred forty-three million, five hundred sixty-four thousand, four hundred ninety-four".