384866460 has 72 divisors (see below), whose sum is σ = 1273564656. Its totient is φ = 93300480.

The previous prime is 384866423. The next prime is 384866477. The reversal of 384866460 is 64668483.

384866460 = 1621² + 1622² + ... + 1755².

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95209 + ... + 99168.

It is an arithmetic number, because the mean of its divisors is an integer number (17688398).

Almost surely, 2^384866460 is an apocalyptic number.

384866460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384866460 is an abundant number, since it is smaller than the sum of its proper divisors (888698196).

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

384866460 is a wasteful number, since it uses less digits than its factorization.

384866460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194403 (or 194398 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 384866460 is about 19618.0136609189. The cubic root of 384866460 is about 727.3945147656.

The spelling of 384866460 in words is "three hundred eighty-four million, eight hundred sixty-six thousand, four hundred sixty".