398076084 has 72 divisors (see below), whose sum is σ = 1187117568. Its totient is φ = 110064960.

The previous prime is 398076079. The next prime is 398076089. The reversal of 398076084 is 480670893.

It is a happy number.

398076084 is a `hidden beast` number, since 39 + 8 + 0 + 7 + 608 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (398076079) and next prime (398076089).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398076089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17667 + ... + 33290.

It is an arithmetic number, because the mean of its divisors is an integer number (16487744).

Almost surely, 2^398076084 is an apocalyptic number.

It is an amenable number.

398076084 is an abundant number, since it is smaller than the sum of its proper divisors (789041484).

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

398076084 is a wasteful number, since it uses less digits than its factorization.

398076084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51005 (or 51000 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 398076084 is about 19951.8441252933. The cubic root of 398076084 is about 735.6231062007.

The spelling of 398076084 in words is "three hundred ninety-eight million, seventy-six thousand, eighty-four".