264121642 has 8 divisors (see below), whose sum is σ = 402897600. Its totient is φ = 129822444.

The previous prime is 264121619. The next prime is 264121681. The reversal of 264121642 is 246121462.

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

It is a self number, because there is not a number n which added to its sum of digits gives 264121642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119042 + ... + 1119277.

It is an arithmetic number, because the mean of its divisors is an integer number (50362200).

Almost surely, 2^264121642 is an apocalyptic number.

264121642 is a deficient number, since it is larger than the sum of its proper divisors (138775958).

264121642 is a wasteful number, since it uses less digits than its factorization.

264121642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238380.

The product of its digits is 4608, while the sum is 28.

The square root of 264121642 is about 16251.8196519651. The cubic root of 264121642 is about 641.6053788731.

The spelling of 264121642 in words is "two hundred sixty-four million, one hundred twenty-one thousand, six hundred forty-two".