380485751 has 2 divisors, whose sum is σ = 380485752. Its totient is φ = 380485750.

The previous prime is 380485741. The next prime is 380485783. The reversal of 380485751 is 157584083.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380485751 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 380485699 and 380485708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380485741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190242875 + 190242876.

It is an arithmetic number, because the mean of its divisors is an integer number (190242876).

Almost surely, 2^380485751 is an apocalyptic number.

380485751 is a deficient number, since it is larger than the sum of its proper divisors (1).

380485751 is an equidigital number, since it uses as much as digits as its factorization.

380485751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 380485751 is about 19506.0439607830. The cubic root of 380485751 is about 724.6241419214.

The spelling of 380485751 in words is "three hundred eighty million, four hundred eighty-five thousand, seven hundred fifty-one".