1400131442 has 4 divisors (see below), whose sum is σ = 2100197166. Its totient is φ = 700065720.

The previous prime is 1400131429. The next prime is 1400131477. The reversal of 1400131442 is 2441310041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 801399481 + 598731961 = 28309^2 + 24469^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 350032859 + ... + 350032862.

Almost surely, 2^1400131442 is an apocalyptic number.

1400131442 is a deficient number, since it is larger than the sum of its proper divisors (700065724).

1400131442 is an equidigital number, since it uses as much as digits as its factorization.

1400131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700065723.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1400131442 is about 37418.3302941219. The cubic root of 1400131442 is about 1118.7239511553.

Adding to 1400131442 its reverse (2441310041), we get a palindrome (3841441483).

The spelling of 1400131442 in words is "one billion, four hundred million, one hundred thirty-one thousand, four hundred forty-two".