102398452 has 18 divisors (see below), whose sum is σ = 194043318. Its totient is φ = 47260512.

The previous prime is 102398447. The next prime is 102398473. The reversal of 102398452 is 254893201.

It can be written as a sum of positive squares in 3 ways, for example, as 6280036 + 96118416 = 2506^2 + 9804^2 .

It is a congruent number.

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, 75063 + ... + 76414.

Almost surely, 2^102398452 is an apocalyptic number.

It is an amenable number.

102398452 is a deficient number, since it is larger than the sum of its proper divisors (91644866).

102398452 is a wasteful number, since it uses less digits than its factorization.

102398452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151507 (or 151492 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 102398452 is about 10119.2120246588. The cubic root of 102398452 is about 467.8404806129.

The spelling of 102398452 in words is "one hundred two million, three hundred ninety-eight thousand, four hundred fifty-two".