1420404749 has 2 divisors, whose sum is σ = 1420404750. Its totient is φ = 1420404748.

The previous prime is 1420404737. The next prime is 1420404761. The reversal of 1420404749 is 9474040241.

It is a balanced prime because it is at equal distance from previous prime (1420404737) and next prime (1420404761).

It can be written as a sum of positive squares in only one way, i.e., 1282929124 + 137475625 = 35818^2 + 11725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420404749 - 2¹⁶ = 1420339213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420404709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710202374 + 710202375.

It is an arithmetic number, because the mean of its divisors is an integer number (710202375).

Almost surely, 2^1420404749 is an apocalyptic number.

It is an amenable number.

1420404749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420404749 is an equidigital number, since it uses as much as digits as its factorization.

1420404749 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 1420404749 is about 37688.2574418081. The cubic root of 1420404749 is about 1124.0976465300.

The spelling of 1420404749 in words is "one billion, four hundred twenty million, four hundred four thousand, seven hundred forty-nine".