1404144342 has 128 divisors (see below), whose sum is σ = 3498577920. Its totient is φ = 415134720.

The previous prime is 1404144337. The next prime is 1404144347. The reversal of 1404144342 is 2434414041.

1404144342 is a `hidden beast` number, since 140 + 41 + 443 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (1404144337) and next prime (1404144347).

It is a super-2 number, since 2×1404144342² = 3943242666341225928, which contains 22 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 (1404144347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1540867 + ... + 1541777.

It is an arithmetic number, because the mean of its divisors is an integer number (27332640).

Almost surely, 2^1404144342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404144342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749288960).

1404144342 is an abundant number, since it is smaller than the sum of its proper divisors (2094433578).

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

1404144342 is a wasteful number, since it uses less digits than its factorization.

1404144342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1029 counting only the distinct ones).

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

The square root of 1404144342 is about 37471.9140423865. The cubic root of 1404144342 is about 1119.7917188161.

Adding to 1404144342 its reverse (2434414041), we get a palindrome (3838558383).

The spelling of 1404144342 in words is "one billion, four hundred four million, one hundred forty-four thousand, three hundred forty-two".