264403140 has 48 divisors (see below), whose sum is σ = 749262528. Its totient is φ = 69656704.

The previous prime is 264403133. The next prime is 264403151. The reversal of 264403140 is 41304462.

264403140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 264403140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21567 + ... + 31526.

It is an arithmetic number, because the mean of its divisors is an integer number (15609636).

Almost surely, 2^264403140 is an apocalyptic number.

264403140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264403140 is an abundant number, since it is smaller than the sum of its proper divisors (484859388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264403140 is a wasteful number, since it uses less digits than its factorization.

264403140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53188 (or 53186 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 264403140 is about 16260.4778527570. The cubic root of 264403140 is about 641.8332366425.

The spelling of 264403140 in words is "two hundred sixty-four million, four hundred three thousand, one hundred forty".