264401938 has 16 divisors (see below), whose sum is σ = 403652736. Its totient is φ = 129857040.

The previous prime is 264401933. The next prime is 264401959. The reversal of 264401938 is 839104462.

It is a junction number, because it is equal to n+sod(n) for n = 264401897 and 264401906.

It is not an unprimeable number, because it can be changed into a prime (264401933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172845 + ... + 174367.

It is an arithmetic number, because the mean of its divisors is an integer number (25228296).

Almost surely, 2^264401938 is an apocalyptic number.

264401938 is a deficient number, since it is larger than the sum of its proper divisors (139250798).

264401938 is a wasteful number, since it uses less digits than its factorization.

264401938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 264401938 is about 16260.4408919316. The cubic root of 264401938 is about 641.8322640308.

The spelling of 264401938 in words is "two hundred sixty-four million, four hundred one thousand, nine hundred thirty-eight".