384205940 has 24 divisors (see below), whose sum is σ = 832860672. Its totient is φ = 148724640.

The previous prime is 384205901. The next prime is 384205963. The reversal of 384205940 is 49502483.

It is a super-2 number, since 2×384205940² = 295228408662567200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 384205940.

It is a congruent number.

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, 309224 + ... + 310463.

It is an arithmetic number, because the mean of its divisors is an integer number (34702528).

Almost surely, 2^384205940 is an apocalyptic number.

It is an amenable number.

384205940 is an abundant number, since it is smaller than the sum of its proper divisors (448654732).

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

384205940 is a wasteful number, since it uses less digits than its factorization.

384205940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619727 (or 619725 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 384205940 is about 19601.1719037409. The cubic root of 384205940 is about 726.9781506526.

The spelling of 384205940 in words is "three hundred eighty-four million, two hundred five thousand, nine hundred forty".