488320381 has 2 divisors, whose sum is σ = 488320382. Its totient is φ = 488320380.

The previous prime is 488320363. The next prime is 488320411. The reversal of 488320381 is 183023884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327284281 + 161036100 = 18091^2 + 12690^2 .

It is a cyclic number.

It is not a de Polignac number, because 488320381 - 2¹⁹ = 487796093 is a prime.

It is a super-2 number, since 2×488320381² = 476913588999970322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 488320381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488320351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244160190 + 244160191.

It is an arithmetic number, because the mean of its divisors is an integer number (244160191).

Almost surely, 2^488320381 is an apocalyptic number.

It is an amenable number.

488320381 is a deficient number, since it is larger than the sum of its proper divisors (1).

488320381 is an equidigital number, since it uses as much as digits as its factorization.

488320381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 488320381 is about 22097.9723277951. The cubic root of 488320381 is about 787.4716911298.

The spelling of 488320381 in words is "four hundred eighty-eight million, three hundred twenty thousand, three hundred eighty-one".