2640263830 has 16 divisors (see below), whose sum is σ = 4753554624. Its totient is φ = 1055865600.

The previous prime is 2640263827. The next prime is 2640263851. The reversal of 2640263830 is 383620462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20230 + ... + 75430.

It is an arithmetic number, because the mean of its divisors is an integer number (297097164).

Almost surely, 2^2640263830 is an apocalyptic number.

2640263830 is a deficient number, since it is larger than the sum of its proper divisors (2113290794).

2640263830 is a wasteful number, since it uses less digits than its factorization.

2640263830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59991.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 2640263830 is about 51383.4976427257. The cubic root of 2640263830 is about 1382.1306842909.

The spelling of 2640263830 in words is "two billion, six hundred forty million, two hundred sixty-three thousand, eight hundred thirty".