1234442040 has 64 divisors (see below), whose sum is σ = 3988202400. Its totient is φ = 303862272.

The previous prime is 1234442023. The next prime is 1234442051. The reversal of 1234442040 is 402444321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1234442040.

It is a congruent number.

It is an unprimeable number.

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, 394095 + ... + 397214.

Almost surely, 2^1234442040 is an apocalyptic number.

1234442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234442040 is an abundant number, since it is smaller than the sum of its proper divisors (2753760360).

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

1234442040 is a wasteful number, since it uses less digits than its factorization.

1234442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791336 (or 791332 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1234442040 is about 35134.6273638984. The cubic root of 1234442040 is about 1072.7295263505.

Adding to 1234442040 its reverse (402444321), we get a palindrome (1636886361).

The spelling of 1234442040 in words is "one billion, two hundred thirty-four million, four hundred forty-two thousand, forty".