1072454636 has 18 divisors (see below), whose sum is σ = 2047828188. Its totient is φ = 487380640.

The previous prime is 1072454633. The next prime is 1072454651. The reversal of 1072454636 is 6364542701.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1072454636.

It is not an unprimeable number, because it can be changed into a prime (1072454633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214760 + ... + 219696.

Almost surely, 2^1072454636 is an apocalyptic number.

It is an amenable number.

1072454636 is a deficient number, since it is larger than the sum of its proper divisors (975373552).

1072454636 is an frugal number, since it uses more digits than its factorization.

1072454636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9889 (or 4950 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 1072454636 is about 32748.3531799692. The cubic root of 1072454636 is about 1023.5906503367.

The spelling of 1072454636 in words is "one billion, seventy-two million, four hundred fifty-four thousand, six hundred thirty-six".