102438988 has 6 divisors (see below), whose sum is σ = 179268236. Its totient is φ = 51219492.

The previous prime is 102438979. The next prime is 102438997. The reversal of 102438988 is 889834201.

It is an interprime number because it is at equal distance from previous prime (102438979) and next prime (102438997).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12804870 + ... + 12804877.

Almost surely, 2^102438988 is an apocalyptic number.

It is an amenable number.

102438988 is a deficient number, since it is larger than the sum of its proper divisors (76829248).

102438988 is a wasteful number, since it uses less digits than its factorization.

102438988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25609751 (or 25609749 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 102438988 is about 10121.2147492285. The cubic root of 102438988 is about 467.9022064152.

The spelling of 102438988 in words is "one hundred two million, four hundred thirty-eight thousand, nine hundred eighty-eight".