1400320244 has 12 divisors (see below), whose sum is σ = 2466790368. Its totient is φ = 695523000.

The previous prime is 1400320223. The next prime is 1400320253. The reversal of 1400320244 is 4420230041.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 1158602 + ... + 1159809.

It is an arithmetic number, because the mean of its divisors is an integer number (205565864).

Almost surely, 2^1400320244 is an apocalyptic number.

It is an amenable number.

1400320244 is a deficient number, since it is larger than the sum of its proper divisors (1066470124).

1400320244 is a wasteful number, since it uses less digits than its factorization.

1400320244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318566 (or 2318564 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1400320244 is about 37420.8530634992. The cubic root of 1400320244 is about 1118.7742340120.

Adding to 1400320244 its reverse (4420230041), we get a palindrome (5820550285).

The spelling of 1400320244 in words is "one billion, four hundred million, three hundred twenty thousand, two hundred forty-four".