1026742369 has 4 divisors (see below), whose sum is σ = 1026812080. Its totient is φ = 1026672660.

The previous prime is 1026742337. The next prime is 1026742373. The reversal of 1026742369 is 9632476201.

It is a happy number.

1026742369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9632476201 = 45121 ⋅213481.

It is a cyclic number.

It is not a de Polignac number, because 1026742369 - 2⁵ = 1026742337 is a prime.

It is a super-2 number, since 2×1026742369² = 2108399784599464322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1026742309) 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, 3147 + ... + 45424.

It is an arithmetic number, because the mean of its divisors is an integer number (256703020).

Almost surely, 2^1026742369 is an apocalyptic number.

It is an amenable number.

1026742369 is a deficient number, since it is larger than the sum of its proper divisors (69711).

1026742369 is an equidigital number, since it uses as much as digits as its factorization.

1026742369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69710.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1026742369 is about 32042.8208652110. The cubic root of 1026742369 is about 1008.8358213190.

The spelling of 1026742369 in words is "one billion, twenty-six million, seven hundred forty-two thousand, three hundred sixty-nine".