1629671456 has 48 divisors (see below), whose sum is σ = 3669595776. Its totient is φ = 697890816.

The previous prime is 1629671447. The next prime is 1629671473. The reversal of 1629671456 is 6541769261.

It is a self number, because there is not a number n which added to its sum of digits gives 1629671456.

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, 450005 + ... + 453611.

It is an arithmetic number, because the mean of its divisors is an integer number (76449912).

Almost surely, 2^1629671456 is an apocalyptic number.

1629671456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1629671456 is an abundant number, since it is smaller than the sum of its proper divisors (2039924320).

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

1629671456 is a wasteful number, since it uses less digits than its factorization.

1629671456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641 (or 5633 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 1629671456 is about 40369.1894394723. The cubic root of 1629671456 is about 1176.7928461961.

The spelling of 1629671456 in words is "one billion, six hundred twenty-nine million, six hundred seventy-one thousand, four hundred fifty-six".