384207690 has 16 divisors (see below), whose sum is σ = 922098528. Its totient is φ = 102455376.

The previous prime is 384207643. The next prime is 384207713. The reversal of 384207690 is 96702483.

It is a super-2 number, since 2×384207690² = 295231098110272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6403432 + ... + 6403491.

It is an arithmetic number, because the mean of its divisors is an integer number (57631158).

Almost surely, 2^384207690 is an apocalyptic number.

384207690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

384207690 is an abundant number, since it is smaller than the sum of its proper divisors (537890838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384207690 is a wasteful number, since it uses less digits than its factorization.

384207690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12806933.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 384207690 is about 19601.2165438781. The cubic root of 384207690 is about 726.9792544095.

The spelling of 384207690 in words is "three hundred eighty-four million, two hundred seven thousand, six hundred ninety".