102406338 has 12 divisors (see below), whose sum is σ = 221880438. Its totient is φ = 34135440.

The previous prime is 102406331. The next prime is 102406387. The reversal of 102406338 is 833604201.

It is a happy number.

102406338 is a `hidden beast` number, since 1 + 0 + 24 + 0 + 633 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62299449 + 40106889 = 7893^2 + 6333^2 .

It is not an unprimeable number, because it can be changed into a prime (102406331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2844603 + ... + 2844638.

Almost surely, 2^102406338 is an apocalyptic number.

102406338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

102406338 is an abundant number, since it is smaller than the sum of its proper divisors (119474100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102406338 is a wasteful number, since it uses less digits than its factorization.

102406338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5689249 (or 5689246 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 102406338 is about 10119.6016720027. The cubic root of 102406338 is about 467.8524902193.

The spelling of 102406338 in words is "one hundred two million, four hundred six thousand, three hundred thirty-eight".