1628014668 has 24 divisors (see below), whose sum is σ = 4341372672. Its totient is φ = 465147024.

The previous prime is 1628014649. The next prime is 1628014679. The reversal of 1628014668 is 8664108261.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9690480 + ... + 9690647.

It is an arithmetic number, because the mean of its divisors is an integer number (180890528).

Almost surely, 2^1628014668 is an apocalyptic number.

It is an amenable number.

1628014668 is an abundant number, since it is smaller than the sum of its proper divisors (2713358004).

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

1628014668 is a wasteful number, since it uses less digits than its factorization.

1628014668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19381141 (or 19381139 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1628014668 is about 40348.6637696963. The cubic root of 1628014668 is about 1176.3939197040.

The spelling of 1628014668 in words is "one billion, six hundred twenty-eight million, fourteen thousand, six hundred sixty-eight".