1142404004 has 12 divisors (see below), whose sum is σ = 2284808064. Its totient is φ = 489601704.

The previous prime is 1142403979. The next prime is 1142404019. The reversal of 1142404004 is 4004042411.

It is a happy number.

1142404004 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20400044 + ... + 20400099.

It is an arithmetic number, because the mean of its divisors is an integer number (190400672).

Almost surely, 2^1142404004 is an apocalyptic number.

1142404004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1142404004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1142404004 is a wasteful number, since it uses less digits than its factorization.

1142404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40800154 (or 40800152 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1142404004 is about 33799.4675105984. The cubic root of 1142404004 is about 1045.3777177487.

Adding to 1142404004 its reverse (4004042411), we get a palindrome (5146446415).

The spelling of 1142404004 in words is "one billion, one hundred forty-two million, four hundred four thousand, four".