1040344142 has 32 divisors (see below), whose sum is σ = 1660608000. Its totient is φ = 487761120.

The previous prime is 1040344141. The next prime is 1040344147. The reversal of 1040344142 is 2414430401.

It is a happy number.

It is a super-3 number, since 3×1040344142³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040344141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1399823 + ... + 1400565.

It is an arithmetic number, because the mean of its divisors is an integer number (51894000).

Almost surely, 2^1040344142 is an apocalyptic number.

1040344142 is a deficient number, since it is larger than the sum of its proper divisors (620263858).

1040344142 is a wasteful number, since it uses less digits than its factorization.

1040344142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1040344142 is about 32254.3662470680. The cubic root of 1040344142 is about 1013.2711449264.

Adding to 1040344142 its reverse (2414430401), we get a palindrome (3454774543).

It can be divided in two parts, 10403 and 44142, that added together give a palindrome (54545).

The spelling of 1040344142 in words is "one billion, forty million, three hundred forty-four thousand, one hundred forty-two".