1047101440 has 256 divisors, whose sum is σ = 3170845440. Its totient is φ = 322437120.

The previous prime is 1047101437. The next prime is 1047101449. The reversal of 1047101440 is 441017401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (256).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047101449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12615639 + ... + 12615721.

It is an arithmetic number, because the mean of its divisors is an integer number (12386115).

Almost surely, 2^1047101440 is an apocalyptic number.

1047101440 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 1047101440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585422720).

1047101440 is an abundant number, since it is smaller than the sum of its proper divisors (2123744000).

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

1047101440 is an frugal number, since it uses more digits than its factorization.

1047101440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1047101440 is about 32358.9468308225. The cubic root of 1047101440 is about 1015.4602295412.

Adding to 1047101440 its reverse (441017401), we get a palindrome (1488118841).

The spelling of 1047101440 in words is "one billion, forty-seven million, one hundred one thousand, four hundred forty".