1061728384 has 16 divisors (see below), whose sum is σ = 2115162270. Its totient is φ = 530864128.

The previous prime is 1061728361. The next prime is 1061728439. The reversal of 1061728384 is 4838271601.

It can be written as a sum of positive squares in only one way, i.e., 970945600 + 90782784 = 31160^2 + 9528^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×1061728384² = 2254534322782502912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4147249 + ... + 4147504.

Almost surely, 2^1061728384 is an apocalyptic number.

It is an amenable number.

1061728384 is a deficient number, since it is larger than the sum of its proper divisors (1053433886).

1061728384 is an frugal number, since it uses more digits than its factorization.

1061728384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8294767 (or 8294755 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1061728384 is about 32584.1738271818. The cubic root of 1061728384 is about 1020.1666983734.

Adding to 1061728384 its reverse (4838271601), we get a palindrome (5899999985).

The spelling of 1061728384 in words is "one billion, sixty-one million, seven hundred twenty-eight thousand, three hundred eighty-four".