384960690 has 24 divisors (see below), whose sum is σ = 1000898028. Its totient is φ = 102656160.

The previous prime is 384960673. The next prime is 384960707. The reversal of 384960690 is 96069483.

384960690 is a `hidden beast` number, since 38 + 4 + 9 + 606 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (384960673) and next prime (384960707).

It can be written as a sum of positive squares in 2 ways, for example, as 375468129 + 9492561 = 19377^2 + 3081^2 .

It is a super-2 number, since 2×384960690² = 296389465690552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2138581 + ... + 2138760.

Almost surely, 2^384960690 is an apocalyptic number.

384960690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

384960690 is an abundant number, since it is smaller than the sum of its proper divisors (615937338).

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

384960690 is a wasteful number, since it uses less digits than its factorization.

384960690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277354 (or 4277351 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 384960690 is about 19620.4151332228. The cubic root of 384960690 is about 727.4538745688.

The spelling of 384960690 in words is "three hundred eighty-four million, nine hundred sixty thousand, six hundred ninety".