920413385 has 8 divisors (see below), whose sum is σ = 1104669576. Its totient is φ = 736215040.

The previous prime is 920413357. The next prime is 920413411. The reversal of 920413385 is 583314029.

It can be written as a sum of positive squares in 4 ways, for example, as 313431616 + 606981769 = 17704^2 + 24637^2 .

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

It is not a de Polignac number, because 920413385 - 2⁸ = 920413129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37577 + ... + 57033.

It is an arithmetic number, because the mean of its divisors is an integer number (138083697).

Almost surely, 2^920413385 is an apocalyptic number.

It is an amenable number.

920413385 is a deficient number, since it is larger than the sum of its proper divisors (184256191).

920413385 is a wasteful number, since it uses less digits than its factorization.

920413385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28923.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 920413385 is about 30338.3154608162. The cubic root of 920413385 is about 972.7344760118.

The spelling of 920413385 in words is "nine hundred twenty million, four hundred thirteen thousand, three hundred eighty-five".