1111404402 has 80 divisors (see below), whose sum is σ = 2574686400. Its totient is φ = 358108128.

The previous prime is 1111404401. The next prime is 1111404433. The reversal of 1111404402 is 2044041111.

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

It is not an unprimeable number, because it can be changed into a prime (1111404401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 716724 + ... + 718272.

It is an arithmetic number, because the mean of its divisors is an integer number (32183580).

Almost surely, 2^1111404402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111404402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287343200).

1111404402 is an abundant number, since it is smaller than the sum of its proper divisors (1463281998).

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

1111404402 is a wasteful number, since it uses less digits than its factorization.

1111404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1700 counting only the distinct ones).

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

The square root of 1111404402 is about 33337.7324063890. The cubic root of 1111404402 is about 1035.8352929323.

Adding to 1111404402 its reverse (2044041111), we get a palindrome (3155445513).

The spelling of 1111404402 in words is "one billion, one hundred eleven million, four hundred four thousand, four hundred two".