1073260421 has 4 divisors (see below), whose sum is σ = 1078073472. Its totient is φ = 1068447372.

The previous prime is 1073260379. The next prime is 1073260423. The reversal of 1073260421 is 1240623701.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073260421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073260423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406191 + ... + 2406636.

It is an arithmetic number, because the mean of its divisors is an integer number (269518368).

Almost surely, 2^1073260421 is an apocalyptic number.

It is an amenable number.

1073260421 is a deficient number, since it is larger than the sum of its proper divisors (4813051).

1073260421 is an equidigital number, since it uses as much as digits as its factorization.

1073260421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813050.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1073260421 is about 32760.6535496470. The cubic root of 1073260421 is about 1023.8469432315.

The spelling of 1073260421 in words is "one billion, seventy-three million, two hundred sixty thousand, four hundred twenty-one".