1400264387 has 2 divisors, whose sum is σ = 1400264388. Its totient is φ = 1400264386.

The previous prime is 1400264363. The next prime is 1400264401. The reversal of 1400264387 is 7834620041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400264387 - 2¹⁰ = 1400263363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400204387) 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, 700132193 + 700132194.

It is an arithmetic number, because the mean of its divisors is an integer number (700132194).

Almost surely, 2^1400264387 is an apocalyptic number.

1400264387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400264387 is an equidigital number, since it uses as much as digits as its factorization.

1400264387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1400264387 is about 37420.1067208526. The cubic root of 1400264387 is about 1118.7593583188.

The spelling of 1400264387 in words is "one billion, four hundred million, two hundred sixty-four thousand, three hundred eighty-seven".