343944636 has 24 divisors (see below), whose sum is σ = 917185920. Its totient is φ = 98269872.

The previous prime is 343944619. The next prime is 343944649. The reversal of 343944636 is 636449343.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047206 + ... + 2047373.

It is an arithmetic number, because the mean of its divisors is an integer number (38216080).

Almost surely, 2^343944636 is an apocalyptic number.

It is an amenable number.

343944636 is an abundant number, since it is smaller than the sum of its proper divisors (573241284).

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

343944636 is a wasteful number, since it uses less digits than its factorization.

343944636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094593 (or 4094591 counting only the distinct ones).

The product of its digits is 559872, while the sum is 42.

The square root of 343944636 is about 18545.7444175207. The cubic root of 343944636 is about 700.6420205005.

The spelling of 343944636 in words is "three hundred forty-three million, nine hundred forty-four thousand, six hundred thirty-six".