398025004 has 24 divisors (see below), whose sum is σ = 755612928. Its totient is φ = 182359680.

The previous prime is 398024993. The next prime is 398025011. The reversal of 398025004 is 400520893.

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, 20812 + ... + 35059.

It is an arithmetic number, because the mean of its divisors is an integer number (31483872).

Almost surely, 2^398025004 is an apocalyptic number.

It is an amenable number.

398025004 is a deficient number, since it is larger than the sum of its proper divisors (357587924).

398025004 is a wasteful number, since it uses less digits than its factorization.

398025004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56025 (or 56023 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 398025004 is about 19950.5640020527. The cubic root of 398025004 is about 735.5916404943.

Adding to 398025004 its reverse (400520893), we get a palindrome (798545897).

The spelling of 398025004 in words is "three hundred ninety-eight million, twenty-five thousand, four".