1240111404 has 144 divisors (see below), whose sum is σ = 3783477600. Its totient is φ = 350203392.

The previous prime is 1240111363. The next prime is 1240111423. The reversal of 1240111404 is 4041110421.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469672 + ... + 472304.

It is an arithmetic number, because the mean of its divisors is an integer number (26274150).

Almost surely, 2^1240111404 is an apocalyptic number.

1240111404 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 1240111404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891738800).

1240111404 is an abundant number, since it is smaller than the sum of its proper divisors (2543366196).

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

1240111404 is a wasteful number, since it uses less digits than its factorization.

1240111404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1240111404 is about 35215.2155182955. The cubic root of 1240111404 is about 1074.3692435328.

Adding to 1240111404 its reverse (4041110421), we get a palindrome (5281221825).

The spelling of 1240111404 in words is "one billion, two hundred forty million, one hundred eleven thousand, four hundred four".