263028428 has 24 divisors (see below), whose sum is σ = 511701120. Its totient is φ = 117480960.

The previous prime is 263028427. The next prime is 263028439. The reversal of 263028428 is 824820362.

It is not an unprimeable number, because it can be changed into a prime (263028421) 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, 79973 + ... + 83196.

It is an arithmetic number, because the mean of its divisors is an integer number (21320880).

Almost surely, 2^263028428 is an apocalyptic number.

It is an amenable number.

263028428 is a deficient number, since it is larger than the sum of its proper divisors (248672692).

263028428 is a wasteful number, since it uses less digits than its factorization.

263028428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163217 (or 163215 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 263028428 is about 16218.1511893310. The cubic root of 263028428 is about 640.7189414266.

The spelling of 263028428 in words is "two hundred sixty-three million, twenty-eight thousand, four hundred twenty-eight".