1013628449 has 4 divisors (see below), whose sum is σ = 1020920880. Its totient is φ = 1006336020.

The previous prime is 1013628443. The next prime is 1013628467. The reversal of 1013628449 is 9448263101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9448263101 = 757 ⋅12481193.

It is a cyclic number.

It is not a de Polignac number, because 1013628449 - 2²⁰ = 1012579873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013628443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3646007 + ... + 3646284.

It is an arithmetic number, because the mean of its divisors is an integer number (255230220).

Almost surely, 2^1013628449 is an apocalyptic number.

It is an amenable number.

1013628449 is a deficient number, since it is larger than the sum of its proper divisors (7292431).

1013628449 is an equidigital number, since it uses as much as digits as its factorization.

1013628449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292430.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1013628449 is about 31837.5320808633. The cubic root of 1013628449 is about 1004.5223339990.

The spelling of 1013628449 in words is "one billion, thirteen million, six hundred twenty-eight thousand, four hundred forty-nine".