263061428 has 12 divisors (see below), whose sum is σ = 526122912. Its totient is φ = 112740600.

The previous prime is 263061391. The next prime is 263061433. The reversal of 263061428 is 824160362.

263061428 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 263061394 and 263061403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4697498 + ... + 4697553.

It is an arithmetic number, because the mean of its divisors is an integer number (43843576).

Almost surely, 2^263061428 is an apocalyptic number.

263061428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

263061428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263061428 is a wasteful number, since it uses less digits than its factorization.

263061428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395062 (or 9395060 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 263061428 is about 16219.1685360255. The cubic root of 263061428 is about 640.7457355404.

The spelling of 263061428 in words is "two hundred sixty-three million, sixty-one thousand, four hundred twenty-eight".