263925490 has 16 divisors (see below), whose sum is σ = 475251480. Its totient is φ = 105528960.

The previous prime is 263925479. The next prime is 263925499. The reversal of 263925490 is 94529362.

It can be written as a sum of positive squares in 4 ways, for example, as 107350321 + 156575169 = 10361^2 + 12513^2 .

It is not an unprimeable number, because it can be changed into a prime (263925499) 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 7 ways as a sum of consecutive naturals, for example, 44500 + ... + 50080.

Almost surely, 2^263925490 is an apocalyptic number.

263925490 is a deficient number, since it is larger than the sum of its proper divisors (211325990).

263925490 is a wasteful number, since it uses less digits than its factorization.

263925490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10317.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 263925490 is about 16245.7837607177. The cubic root of 263925490 is about 641.4465084561.

The spelling of 263925490 in words is "two hundred sixty-three million, nine hundred twenty-five thousand, four hundred ninety".