263628942 has 8 divisors (see below), whose sum is σ = 527257896. Its totient is φ = 87876312.

The previous prime is 263628923. The next prime is 263628949. The reversal of 263628942 is 249826362.

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

263628942 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 263628894 and 263628903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263628949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21969073 + ... + 21969084.

It is an arithmetic number, because the mean of its divisors is an integer number (65907237).

Almost surely, 2^263628942 is an apocalyptic number.

263628942 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.

263628942 is a wasteful number, since it uses less digits than its factorization.

263628942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43938162.

The product of its digits is 248832, while the sum is 42.

The square root of 263628942 is about 16236.6542735873. The cubic root of 263628942 is about 641.2061742522.

The spelling of 263628942 in words is "two hundred sixty-three million, six hundred twenty-eight thousand, nine hundred forty-two".