264643042 has 8 divisors (see below), whose sum is σ = 398002176. Its totient is φ = 131975652.

The previous prime is 264643033. The next prime is 264643061. The reversal of 264643042 is 240346462.

264643042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 264642995 and 264643013.

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, 171978 + ... + 173509.

It is an arithmetic number, because the mean of its divisors is an integer number (49750272).

Almost surely, 2^264643042 is an apocalyptic number.

264643042 is a deficient number, since it is larger than the sum of its proper divisors (133359134).

264643042 is a wasteful number, since it uses less digits than its factorization.

264643042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345872.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 264643042 is about 16267.8530236783. The cubic root of 264643042 is about 642.0272970346.

The spelling of 264643042 in words is "two hundred sixty-four million, six hundred forty-three thousand, forty-two".