407238343 has 4 divisors (see below), whose sum is σ = 428671960. Its totient is φ = 385804728.

The previous prime is 407238323. The next prime is 407238361. The reversal of 407238343 is 343832704.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-407238343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 407238299 and 407238308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407238323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10716780 + ... + 10716817.

It is an arithmetic number, because the mean of its divisors is an integer number (107167990).

Almost surely, 2^407238343 is an apocalyptic number.

407238343 is a deficient number, since it is larger than the sum of its proper divisors (21433617).

407238343 is a wasteful number, since it uses less digits than its factorization.

407238343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21433616.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 407238343 is about 20180.1472492150. The cubic root of 407238343 is about 741.2241383388.

The spelling of 407238343 in words is "four hundred seven million, two hundred thirty-eight thousand, three hundred forty-three".