264640046 has 16 divisors (see below), whose sum is σ = 438531840. Its totient is φ = 118767480.

The previous prime is 264640031. The next prime is 264640067. The reversal of 264640046 is 640046462.

It is a junction number, because it is equal to n+sod(n) for n = 264639994 and 264640021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74396 + ... + 77871.

It is an arithmetic number, because the mean of its divisors is an integer number (27408240).

Almost surely, 2^264640046 is an apocalyptic number.

264640046 is a deficient number, since it is larger than the sum of its proper divisors (173891794).

264640046 is a wasteful number, since it uses less digits than its factorization.

264640046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152359.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 264640046 is about 16267.7609399696. The cubic root of 264640046 is about 642.0248742477.

The spelling of 264640046 in words is "two hundred sixty-four million, six hundred forty thousand, forty-six".