1642654216 has 16 divisors (see below), whose sum is σ = 3519973440. Its totient is φ = 703994640.

The previous prime is 1642654193. The next prime is 1642654243. The reversal of 1642654216 is 6124562461.

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, 14666500 + ... + 14666611.

It is an arithmetic number, because the mean of its divisors is an integer number (219998340).

Almost surely, 2^1642654216 is an apocalyptic number.

It is an amenable number.

1642654216 is an abundant number, since it is smaller than the sum of its proper divisors (1877319224).

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

1642654216 is a wasteful number, since it uses less digits than its factorization.

1642654216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29333124 (or 29333120 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 1642654216 is about 40529.6708104075. The cubic root of 1642654216 is about 1179.9095535386.

The spelling of 1642654216 in words is "one billion, six hundred forty-two million, six hundred fifty-four thousand, two hundred sixteen".