1399960244 has 6 divisors (see below), whose sum is σ = 2449930434. Its totient is φ = 699980120.

The previous prime is 1399960213. The next prime is 1399960249. The reversal of 1399960244 is 4420699931.

It can be written as a sum of positive squares in only one way, i.e., 1399657744 + 302500 = 37412^2 + 550^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399960249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174995027 + ... + 174995034.

It is an arithmetic number, because the mean of its divisors is an integer number (408321739).

Almost surely, 2^1399960244 is an apocalyptic number.

It is an amenable number.

1399960244 is a deficient number, since it is larger than the sum of its proper divisors (1049970190).

1399960244 is a wasteful number, since it uses less digits than its factorization.

1399960244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349990065 (or 349990063 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 1399960244 is about 37416.0426020711. The cubic root of 1399960244 is about 1118.6783527913.

The spelling of 1399960244 in words is "one billion, three hundred ninety-nine million, nine hundred sixty thousand, two hundred forty-four".