264446642 has 8 divisors (see below), whose sum is σ = 397237932. Its totient is φ = 132034000.

The previous prime is 264446641. The next prime is 264446653. The reversal of 264446642 is 246644462.

264446642 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 213481321 + 50965321 = 14611^2 + 7139^2 .

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 = 264446596 and 264446605.

It is not an unprimeable number, because it can be changed into a prime (264446641) 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, 92909 + ... + 95712.

Almost surely, 2^264446642 is an apocalyptic number.

264446642 is a deficient number, since it is larger than the sum of its proper divisors (132791290).

264446642 is a wasteful number, since it uses less digits than its factorization.

264446642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189324.

The product of its digits is 221184, while the sum is 38.

The square root of 264446642 is about 16261.8154583060. The cubic root of 264446642 is about 641.8684347852.

The spelling of 264446642 in words is "two hundred sixty-four million, four hundred forty-six thousand, six hundred forty-two".