1420388293 has 2 divisors, whose sum is σ = 1420388294. Its totient is φ = 1420388292.

The previous prime is 1420388279. The next prime is 1420388309. The reversal of 1420388293 is 3928830241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1100049889 + 320338404 = 33167^2 + 17898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420388293 - 2¹⁷ = 1420257221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420380293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710194146 + 710194147.

It is an arithmetic number, because the mean of its divisors is an integer number (710194147).

Almost surely, 2^1420388293 is an apocalyptic number.

It is an amenable number.

1420388293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420388293 is an equidigital number, since it uses as much as digits as its factorization.

1420388293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1420388293 is about 37688.0391238387. The cubic root of 1420388293 is about 1124.0933054617.

The spelling of 1420388293 in words is "one billion, four hundred twenty million, three hundred eighty-eight thousand, two hundred ninety-three".