384057890 has 16 divisors (see below), whose sum is σ = 692065080. Its totient is φ = 153454080.

The previous prime is 384057881. The next prime is 384057901. The reversal of 384057890 is 98750483.

It can be written as a sum of positive squares in 4 ways, for example, as 124300201 + 259757689 = 11149^2 + 16117^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11381 + ... + 29960.

Almost surely, 2^384057890 is an apocalyptic number.

384057890 is a deficient number, since it is larger than the sum of its proper divisors (308007190).

384057890 is a wasteful number, since it uses less digits than its factorization.

384057890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42277.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 384057890 is about 19597.3949799457. The cubic root of 384057890 is about 726.8847606834.

The spelling of 384057890 in words is "three hundred eighty-four million, fifty-seven thousand, eight hundred ninety".