406470642 has 32 divisors (see below), whose sum is σ = 835584000. Its totient is φ = 131768208.

The previous prime is 406470619. The next prime is 406470661. The reversal of 406470642 is 246074604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25359 + ... + 38157.

It is an arithmetic number, because the mean of its divisors is an integer number (26112000).

Almost surely, 2^406470642 is an apocalyptic number.

406470642 is an abundant number, since it is smaller than the sum of its proper divisors (429113358).

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

406470642 is a wasteful number, since it uses less digits than its factorization.

406470642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 406470642 is about 20161.1170821460. The cubic root of 406470642 is about 740.7580751032.

The spelling of 406470642 in words is "four hundred six million, four hundred seventy thousand, six hundred forty-two".