1011383604 has 384 divisors, whose sum is σ = 3554611200. Its totient is φ = 240744960.

The previous prime is 1011383603. The next prime is 1011383621. The reversal of 1011383604 is 4063831101.

1011383604 is a `hidden beast` number, since 10 + 11 + 38 + 3 + 604 = 666.

1011383604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011383603) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5846062 + ... + 5846234.

It is an arithmetic number, because the mean of its divisors is an integer number (9256800).

Almost surely, 2^1011383604 is an apocalyptic number.

1011383604 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 1011383604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777305600).

1011383604 is an abundant number, since it is smaller than the sum of its proper divisors (2543227596).

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

1011383604 is a wasteful number, since it uses less digits than its factorization.

1011383604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1011383604 is about 31802.2578443733. The cubic root of 1011383604 is about 1003.7802265473.

The spelling of 1011383604 in words is "one billion, eleven million, three hundred eighty-three thousand, six hundred four".