263421042 has 8 divisors (see below), whose sum is σ = 526842096. Its totient is φ = 87807012.

The previous prime is 263421031. The next prime is 263421061. The reversal of 263421042 is 240124362.

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

263421042 is an admirable 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, 21951748 + ... + 21951759.

It is an arithmetic number, because the mean of its divisors is an integer number (65855262).

Almost surely, 2^263421042 is an apocalyptic number.

263421042 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.

263421042 is a wasteful number, since it uses less digits than its factorization.

263421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43903512.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 263421042 is about 16230.2508298547. The cubic root of 263421042 is about 641.0375763986.

The spelling of 263421042 in words is "two hundred sixty-three million, four hundred twenty-one thousand, forty-two".