398004006554 has 192 divisors, whose sum is σ = 801010643328. Its totient is φ = 146468044800.

The previous prime is 398004006553. The next prime is 398004006577. The reversal of 398004006554 is 455600400893.

It is a super-3 number, since 3×398004006554³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (398004006553) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 420278309 + ... + 420279255.

It is an arithmetic number, because the mean of its divisors is an integer number (4171930434).

Almost surely, 2^398004006554 is an apocalyptic number.

398004006554 is an abundant number, since it is smaller than the sum of its proper divisors (403006636774).

398004006554 is a wasteful number, since it uses less digits than its factorization.

398004006554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 398004006554 in words is "three hundred ninety-eight billion, four million, six thousand, five hundred fifty-four".