406630342 has 4 divisors (see below), whose sum is σ = 609945516. Its totient is φ = 203315170.

The previous prime is 406630253. The next prime is 406630391. The reversal of 406630342 is 243036604.

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

It is a self number, because there is not a number n which added to its sum of digits gives 406630342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101657584 + ... + 101657587.

It is an arithmetic number, because the mean of its divisors is an integer number (152486379).

Almost surely, 2^406630342 is an apocalyptic number.

406630342 is a deficient number, since it is larger than the sum of its proper divisors (203315174).

406630342 is a wasteful number, since it uses less digits than its factorization.

406630342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203315173.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 406630342 is about 20165.0772872310. The cubic root of 406630342 is about 740.8550756101.

Adding to 406630342 its reverse (243036604), we get a palindrome (649666946).

The spelling of 406630342 in words is "four hundred six million, six hundred thirty thousand, three hundred forty-two".