398076384 has 48 divisors (see below), whose sum is σ = 1046742480. Its totient is φ = 132464640.

The previous prime is 398076361. The next prime is 398076389. The reversal of 398076384 is 483670893.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398076389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58302 + ... + 64770.

It is an arithmetic number, because the mean of its divisors is an integer number (21807135).

Almost surely, 2^398076384 is an apocalyptic number.

It is an amenable number.

398076384 is an abundant number, since it is smaller than the sum of its proper divisors (648666096).

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

398076384 is a wasteful number, since it uses less digits than its factorization.

398076384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7123 (or 7115 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 398076384 is about 19951.8516433939. The cubic root of 398076384 is about 735.6232909953.

The spelling of 398076384 in words is "three hundred ninety-eight million, seventy-six thousand, three hundred eighty-four".