1405479629 has 2 divisors, whose sum is σ = 1405479630. Its totient is φ = 1405479628.

The previous prime is 1405479623. The next prime is 1405479679. The reversal of 1405479629 is 9269745041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 818532100 + 586947529 = 28610^2 + 24227^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405479629 - 2⁴ = 1405479613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405479623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702739814 + 702739815.

It is an arithmetic number, because the mean of its divisors is an integer number (702739815).

Almost surely, 2^1405479629 is an apocalyptic number.

It is an amenable number.

1405479629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405479629 is an equidigital number, since it uses as much as digits as its factorization.

1405479629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 1405479629 is about 37489.7269795340. The cubic root of 1405479629 is about 1120.1465659064.

The spelling of 1405479629 in words is "one billion, four hundred five million, four hundred seventy-nine thousand, six hundred twenty-nine".