406491602 has 8 divisors (see below), whose sum is σ = 665168112. Its totient is φ = 184768900.

The previous prime is 406491557. The next prime is 406491619. The reversal of 406491602 is 206194604.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 9238424 + ... + 9238467.

It is an arithmetic number, because the mean of its divisors is an integer number (83146014).

Almost surely, 2^406491602 is an apocalyptic number.

406491602 is a deficient number, since it is larger than the sum of its proper divisors (258676510).

406491602 is a wasteful number, since it uses less digits than its factorization.

406491602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18476904.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 406491602 is about 20161.6368879117. The cubic root of 406491602 is about 740.7708074884.

The spelling of 406491602 in words is "four hundred six million, four hundred ninety-one thousand, six hundred two".