320763530 has 32 divisors (see below), whose sum is σ = 592764480. Its totient is φ = 124927360.

The previous prime is 320763511. The next prime is 320763539. The reversal of 320763530 is 35367023.

It is a junction number, because it is equal to n+sod(n) for n = 320763493 and 320763502.

It is not an unprimeable number, because it can be changed into a prime (320763539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60590 + ... + 65670.

It is an arithmetic number, because the mean of its divisors is an integer number (18523890).

Almost surely, 2^320763530 is an apocalyptic number.

320763530 is a deficient number, since it is larger than the sum of its proper divisors (272000950).

320763530 is a wasteful number, since it uses less digits than its factorization.

320763530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 320763530 is about 17909.8724171894. The cubic root of 320763530 is about 684.5339540431.

The spelling of 320763530 in words is "three hundred twenty million, seven hundred sixty-three thousand, five hundred thirty".