1400363444 has 6 divisors (see below), whose sum is σ = 2450636034. Its totient is φ = 700181720.

The previous prime is 1400363443. The next prime is 1400363477. The reversal of 1400363444 is 4443630041.

It can be written as a sum of positive squares in only one way, i.e., 717168400 + 683195044 = 26780^2 + 26138^2 .

It is a super-2 number, since 2×1400363444² = 3922035550583082272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400363443) 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 as a sum of consecutive naturals, namely, 175045427 + ... + 175045434.

It is an arithmetic number, because the mean of its divisors is an integer number (408439339).

Almost surely, 2^1400363444 is an apocalyptic number.

It is an amenable number.

1400363444 is a deficient number, since it is larger than the sum of its proper divisors (1050272590).

1400363444 is a wasteful number, since it uses less digits than its factorization.

1400363444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350090865 (or 350090863 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 1400363444 is about 37421.4302773157. The cubic root of 1400363444 is about 1118.7857386542.

Adding to 1400363444 its reverse (4443630041), we get a palindrome (5843993485).

The spelling of 1400363444 in words is "one billion, four hundred million, three hundred sixty-three thousand, four hundred forty-four".