1628871746 has 8 divisors (see below), whose sum is σ = 2448874560. Its totient is φ = 812580228.

The previous prime is 1628871731. The next prime is 1628871793. The reversal of 1628871746 is 6471788261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1628871694 and 1628871703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926726 + ... + 928481.

It is an arithmetic number, because the mean of its divisors is an integer number (306109320).

Almost surely, 2^1628871746 is an apocalyptic number.

1628871746 is a deficient number, since it is larger than the sum of its proper divisors (820002814).

1628871746 is a wasteful number, since it uses less digits than its factorization.

1628871746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855648.

The product of its digits is 903168, while the sum is 50.

The square root of 1628871746 is about 40359.2832691563. The cubic root of 1628871746 is about 1176.6003233448.

The spelling of 1628871746 in words is "one billion, six hundred twenty-eight million, eight hundred seventy-one thousand, seven hundred forty-six".