1400240442 has 8 divisors (see below), whose sum is σ = 2800480896. Its totient is φ = 466746812.

The previous prime is 1400240441. The next prime is 1400240447. The reversal of 1400240442 is 2440420041.

It is a sphenic number, since it is the product of 3 distinct primes.

1400240442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1400240441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116686698 + ... + 116686709.

It is an arithmetic number, because the mean of its divisors is an integer number (350060112).

Almost surely, 2^1400240442 is an apocalyptic number.

1400240442 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.

1400240442 is a wasteful number, since it uses less digits than its factorization.

1400240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233373412.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1400240442 is about 37419.7867711723. The cubic root of 1400240442 is about 1118.7529812265.

Adding to 1400240442 its reverse (2440420041), we get a palindrome (3840660483).

The spelling of 1400240442 in words is "one billion, four hundred million, two hundred forty thousand, four hundred forty-two".