1915648 has 36 divisors (see below), whose sum is σ = 4374160. Its totient is φ = 820224.

The previous prime is 1915633. The next prime is 1915649. The reversal of 1915648 is 8465191.

It is a super-3 number, since 3×1915648³ = 21089602119061733376, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1915649) 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, 1258 + ... + 2326.

2^1915648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1915648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2187080).

1915648 is an abundant number, since it is smaller than the sum of its proper divisors (2458512).

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

1915648 is an equidigital number, since it uses as much as digits as its factorization.

1915648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1078 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 1915648 is about 1384.0693624237. The cubic root of 1915648 is about 124.1953217251.

The spelling of 1915648 in words is "one million, nine hundred fifteen thousand, six hundred forty-eight".