1628522872 has 16 divisors (see below), whose sum is σ = 3055381560. Its totient is φ = 813754464.

The previous prime is 1628522809. The next prime is 1628522879. The reversal of 1628522872 is 2782258261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628522879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49543 + ... + 75574.

Almost surely, 2^1628522872 is an apocalyptic number.

It is an amenable number.

1628522872 is a deficient number, since it is larger than the sum of its proper divisors (1426858688).

1628522872 is a wasteful number, since it uses less digits than its factorization.

1628522872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126750 (or 126746 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 1628522872 is about 40354.9609341900. The cubic root of 1628522872 is about 1176.5163153862.

The spelling of 1628522872 in words is "one billion, six hundred twenty-eight million, five hundred twenty-two thousand, eight hundred seventy-two".