1404344142 has 56 divisors (see below), whose sum is σ = 3176564040. Its totient is φ = 465413040.

The previous prime is 1404344141. The next prime is 1404344153. The reversal of 1404344142 is 2414434041.

1404344142 is a `hidden beast` number, since 140 + 43 + 441 + 42 = 666.

It is a super-3 number, since 3×1404344142³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404344141) 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 27 ways as a sum of consecutive naturals, for example, 258292 + ... + 263672.

Almost surely, 2^1404344142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404344142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588282020).

1404344142 is an abundant number, since it is smaller than the sum of its proper divisors (1772219898).

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

1404344142 is an equidigital number, since it uses as much as digits as its factorization.

1404344142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1404344142 is about 37474.5799442769. The cubic root of 1404344142 is about 1119.8448291618.

Adding to 1404344142 its reverse (2414434041), we get a palindrome (3818778183).

It can be divided in two parts, 14043 and 44142, that added together give a palindrome (58185).

The spelling of 1404344142 in words is "one billion, four hundred four million, three hundred forty-four thousand, one hundred forty-two".