1021332480 has 528 divisors, whose sum is σ = 4032426240. Its totient is φ = 219512832.

The previous prime is 1021332463. The next prime is 1021332547. The reversal of 1021332480 is 842331201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1021332480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17310691 + ... + 17310749.

Almost surely, 2^1021332480 is an apocalyptic number.

1021332480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021332480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016213120).

1021332480 is an abundant number, since it is smaller than the sum of its proper divisors (3011093760).

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

1021332480 is a wasteful number, since it uses less digits than its factorization.

1021332480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1021332480 is about 31958.2928204871. The cubic root of 1021332480 is about 1007.0608536709.

Adding to 1021332480 its reverse (842331201), we get a palindrome (1863663681).

The spelling of 1021332480 in words is "one billion, twenty-one million, three hundred thirty-two thousand, four hundred eighty".