385418507 has 2 divisors, whose sum is σ = 385418508. Its totient is φ = 385418506.

The previous prime is 385418489. The next prime is 385418513. The reversal of 385418507 is 705814583.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385418507 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (385418707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192709253 + 192709254.

It is an arithmetic number, because the mean of its divisors is an integer number (192709254).

Almost surely, 2^385418507 is an apocalyptic number.

385418507 is a deficient number, since it is larger than the sum of its proper divisors (1).

385418507 is an equidigital number, since it uses as much as digits as its factorization.

385418507 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 385418507 is about 19632.0785196066. The cubic root of 385418507 is about 727.7421367409.

The spelling of 385418507 in words is "three hundred eighty-five million, four hundred eighteen thousand, five hundred seven".