920259745 has 8 divisors (see below), whose sum is σ = 1134158184. Its totient is φ = 716310144.

The previous prime is 920259643. The next prime is 920259749. The reversal of 920259745 is 547952029.

It can be written as a sum of positive squares in 4 ways, for example, as 366645904 + 553613841 = 19148^2 + 23529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920259745 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920259749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2487004 + ... + 2487373.

It is an arithmetic number, because the mean of its divisors is an integer number (141769773).

Almost surely, 2^920259745 is an apocalyptic number.

It is an amenable number.

920259745 is a deficient number, since it is larger than the sum of its proper divisors (213898439).

920259745 is a wasteful number, since it uses less digits than its factorization.

920259745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4974419.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 920259745 is about 30335.7832435558. The cubic root of 920259745 is about 972.6803484340.

The spelling of 920259745 in words is "nine hundred twenty million, two hundred fifty-nine thousand, seven hundred forty-five".