1021162448 has 80 divisors (see below), whose sum is σ = 2158790400. Its totient is φ = 466352640.

The previous prime is 1021162447. The next prime is 1021162459. The reversal of 1021162448 is 8442611201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021162448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021162447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982313 + ... + 983351.

It is an arithmetic number, because the mean of its divisors is an integer number (26984880).

Almost surely, 2^1021162448 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 1021162448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079395200).

1021162448 is an abundant number, since it is smaller than the sum of its proper divisors (1137627952).

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

1021162448 is a wasteful number, since it uses less digits than its factorization.

1021162448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1021162448 is about 31955.6324925669. The cubic root of 1021162448 is about 1007.0049652188.

Adding to 1021162448 its reverse (8442611201), we get a palindrome (9463773649).

The spelling of 1021162448 in words is "one billion, twenty-one million, one hundred sixty-two thousand, four hundred forty-eight".