646035474 has 32 divisors (see below), whose sum is σ = 1524289536. Its totient is φ = 178626960.

The previous prime is 646035463. The next prime is 646035487. The reversal of 646035474 is 474530646.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246792 + ... + 249395.

It is an arithmetic number, because the mean of its divisors is an integer number (47634048).

Almost surely, 2^646035474 is an apocalyptic number.

646035474 is an abundant number, since it is smaller than the sum of its proper divisors (878254062).

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

646035474 is a wasteful number, since it uses less digits than its factorization.

646035474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496230.

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 646035474 is about 25417.2278976288. The cubic root of 646035474 is about 864.4743703127.

The spelling of 646035474 in words is "six hundred forty-six million, thirty-five thousand, four hundred seventy-four".