1400350249 has 2 divisors, whose sum is σ = 1400350250. Its totient is φ = 1400350248.

The previous prime is 1400350243. The next prime is 1400350279. The reversal of 1400350249 is 9420530041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199929600 + 200420649 = 34640^2 + 14157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400350249 - 2⁹ = 1400349737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400350243) by changing a digit.

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, 700175124 + 700175125.

It is an arithmetic number, because the mean of its divisors is an integer number (700175125).

Almost surely, 2^1400350249 is an apocalyptic number.

It is an amenable number.

1400350249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400350249 is an equidigital number, since it uses as much as digits as its factorization.

1400350249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1400350249 is about 37421.2539741789. The cubic root of 1400350249 is about 1118.7822247035.

It can be divided in two parts, 1400 and 350249, that added together give a square (351649 = 593²).

The spelling of 1400350249 in words is "one billion, four hundred million, three hundred fifty thousand, two hundred forty-nine".