398586152 has 8 divisors (see below), whose sum is σ = 747349050. Its totient is φ = 199293072.

The previous prime is 398586137. The next prime is 398586157. The reversal of 398586152 is 251685893.

It can be written as a sum of positive squares in only one way, i.e., 289884676 + 108701476 = 17026^2 + 10426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 398586097 and 398586106.

It is not an unprimeable number, because it can be changed into a prime (398586157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24911627 + ... + 24911642.

Almost surely, 2^398586152 is an apocalyptic number.

It is an amenable number.

398586152 is a deficient number, since it is larger than the sum of its proper divisors (348762898).

398586152 is a wasteful number, since it uses less digits than its factorization.

398586152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49823275 (or 49823271 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The square root of 398586152 is about 19964.6225108315. The cubic root of 398586152 is about 735.9371648074.

The spelling of 398586152 in words is "three hundred ninety-eight million, five hundred eighty-six thousand, one hundred fifty-two".