1630448 has 20 divisors (see below), whose sum is σ = 3182088. Its totient is φ = 809280.

The previous prime is 1630441. The next prime is 1630451. The reversal of 1630448 is 8440361.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630441) 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, 2615 + ... + 3177.

2^1630448 is an apocalyptic number.

It is an amenable number.

1630448 is a deficient number, since it is larger than the sum of its proper divisors (1551640).

1630448 is a wasteful number, since it uses less digits than its factorization.

1630448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1630448 is about 1276.8899717673. The cubic root of 1630448 is about 117.6979731782.

The spelling of 1630448 in words is "one million, six hundred thirty thousand, four hundred forty-eight".