406947742 has 4 divisors (see below), whose sum is σ = 610421616. Its totient is φ = 203473870.

The previous prime is 406947733. The next prime is 406947767. The reversal of 406947742 is 247749604.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101736934 + ... + 101736937.

It is an arithmetic number, because the mean of its divisors is an integer number (152605404).

Almost surely, 2^406947742 is an apocalyptic number.

406947742 is a deficient number, since it is larger than the sum of its proper divisors (203473874).

406947742 is a wasteful number, since it uses less digits than its factorization.

406947742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203473873.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 406947742 is about 20172.9457938101. The cubic root of 406947742 is about 741.0477864672.

The spelling of 406947742 in words is "four hundred six million, nine hundred forty-seven thousand, seven hundred forty-two".