1628202444 has 24 divisors (see below), whose sum is σ = 4144515648. Its totient is φ = 493394640.

The previous prime is 1628202431. The next prime is 1628202463. The reversal of 1628202444 is 4442028261.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 7 ways as a sum of consecutive naturals, for example, 6167302 + ... + 6167565.

It is an arithmetic number, because the mean of its divisors is an integer number (172688152).

Almost surely, 2^1628202444 is an apocalyptic number.

It is an amenable number.

1628202444 is an abundant number, since it is smaller than the sum of its proper divisors (2516313204).

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

1628202444 is a wasteful number, since it uses less digits than its factorization.

1628202444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334885 (or 12334883 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 1628202444 is about 40350.9906198101. The cubic root of 1628202444 is about 1176.4391465799.

The spelling of 1628202444 in words is "one billion, six hundred twenty-eight million, two hundred two thousand, four hundred forty-four".