1101047400 has 72 divisors (see below), whose sum is σ = 3697690230. Its totient is φ = 293612160.

The previous prime is 1101047399. The next prime is 1101047417. The reversal of 1101047400 is 47401011.

It can be written as a sum of positive squares in 3 ways, for example, as 1073610756 + 27436644 = 32766^2 + 5238^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 304047 + ... + 307646.

Almost surely, 2^1101047400 is an apocalyptic number.

1101047400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101047400 is an abundant number, since it is smaller than the sum of its proper divisors (2596642830).

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

1101047400 is a wasteful number, since it uses less digits than its factorization.

1101047400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611715 (or 611703 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1101047400 is about 33182.0342956848. The cubic root of 1101047400 is about 1032.6076509730.

Adding to 1101047400 its reverse (47401011), we get a palindrome (1148448411).

The spelling of 1101047400 in words is "one billion, one hundred one million, forty-seven thousand, four hundred".