1449779413 has 2 divisors, whose sum is σ = 1449779414. Its totient is φ = 1449779412.

The previous prime is 1449779389. The next prime is 1449779417. The reversal of 1449779413 is 3149779441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1257624369 + 192155044 = 35463^2 + 13862^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449779413 - 2¹³ = 1449771221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449779417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724889706 + 724889707.

It is an arithmetic number, because the mean of its divisors is an integer number (724889707).

Almost surely, 2^1449779413 is an apocalyptic number.

It is an amenable number.

1449779413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449779413 is an equidigital number, since it uses as much as digits as its factorization.

1449779413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 49.

The square root of 1449779413 is about 38075.9689699422. The cubic root of 1449779413 is about 1131.7937972683.

The spelling of 1449779413 in words is "one billion, four hundred forty-nine million, seven hundred seventy-nine thousand, four hundred thirteen".