1011648 has 56 divisors (see below), whose sum is σ = 2926080. Its totient is φ = 305920.

The previous prime is 1011641. The next prime is 1011649. The reversal of 1011648 is 8461101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873 + ... + 2351.

2^1011648 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 1011648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463040).

1011648 is an abundant number, since it is smaller than the sum of its proper divisors (1914432).

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

1011648 is a wasteful number, since it uses less digits than its factorization.

1011648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1011648 is about 1005.8071385708. The cubic root of 1011648 is about 100.3867688368.

Adding to 1011648 its reverse (8461101), we get a palindrome (9472749).

The spelling of 1011648 in words is "one million, eleven thousand, six hundred forty-eight".