920278413 has 12 divisors (see below), whose sum is σ = 1333061340. Its totient is φ = 611778816.

The previous prime is 920278363. The next prime is 920278417. The reversal of 920278413 is 314872029.

It can be written as a sum of positive squares in 2 ways, for example, as 733218084 + 187060329 = 27078^2 + 13677^2 .

It is not a de Polignac number, because 920278413 - 2¹⁰ = 920277389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920278417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141658 + ... + 148011.

It is an arithmetic number, because the mean of its divisors is an integer number (111088445).

Almost surely, 2^920278413 is an apocalyptic number.

It is an amenable number.

920278413 is a deficient number, since it is larger than the sum of its proper divisors (412782927).

920278413 is a wasteful number, since it uses less digits than its factorization.

920278413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290028 (or 290025 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 920278413 is about 30336.0909314302. The cubic root of 920278413 is about 972.6869255169.

The spelling of 920278413 in words is "nine hundred twenty million, two hundred seventy-eight thousand, four hundred thirteen".