1424799749 has 2 divisors, whose sum is σ = 1424799750. Its totient is φ = 1424799748.

The previous prime is 1424799731. The next prime is 1424799793. The reversal of 1424799749 is 9479974241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 816930724 + 607869025 = 28582^2 + 24655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1424799749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1424799694 and 1424799703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1424799709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712399874 + 712399875.

It is an arithmetic number, because the mean of its divisors is an integer number (712399875).

Almost surely, 2^1424799749 is an apocalyptic number.

It is an amenable number.

1424799749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424799749 is an equidigital number, since it uses as much as digits as its factorization.

1424799749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 56.

The square root of 1424799749 is about 37746.5196938738. The cubic root of 1424799749 is about 1125.2558427841.

The spelling of 1424799749 in words is "one billion, four hundred twenty-four million, seven hundred ninety-nine thousand, seven hundred forty-nine".