1081464384 has 448 divisors, whose sum is σ = 4080125952. Its totient is φ = 243302400.

The previous prime is 1081464383. The next prime is 1081464389. The reversal of 1081464384 is 4834641801.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1081464383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3267099 + ... + 3267429.

It is an arithmetic number, because the mean of its divisors is an integer number (9107424).

Almost surely, 2^1081464384 is an apocalyptic number.

1081464384 is a gapful number since it is divisible by the number (14) 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 1081464384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2040062976).

1081464384 is an abundant number, since it is smaller than the sum of its proper divisors (2998661568).

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

1081464384 is a wasteful number, since it uses less digits than its factorization.

1081464384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 1081464384 is about 32885.6257960830. The cubic root of 1081464384 is about 1026.4490736554.

The spelling of 1081464384 in words is "one billion, eighty-one million, four hundred sixty-four thousand, three hundred eighty-four".