398152850 has 12 divisors (see below), whose sum is σ = 740564394. Its totient is φ = 159261120.

The previous prime is 398152849. The next prime is 398152921. The reversal of 398152850 is 58251893.

It can be written as a sum of positive squares in 3 ways, for example, as 195916009 + 202236841 = 13997^2 + 14221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 398152798 and 398152807.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3981479 + ... + 3981578.

Almost surely, 2^398152850 is an apocalyptic number.

398152850 is a deficient number, since it is larger than the sum of its proper divisors (342411544).

398152850 is a wasteful number, since it uses less digits than its factorization.

398152850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963069 (or 7963064 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 398152850 is about 19953.7678146259. The cubic root of 398152850 is about 735.6703896356.

The spelling of 398152850 in words is "three hundred ninety-eight million, one hundred fifty-two thousand, eight hundred fifty".